Caterpillar AS2301
Maintenance schedule, common problems & OEM parts breakdown
The AS2301 is a hydraulically extendible paving screed, not a self-propelled paver. It carries no engine, transmission, or undercarriage of its own; it mounts to and is towed behind a Cat paver tractor from the AP-1000D/AP-1055D class, drawing hydraulic power and controls from that host machine. Standard base paving width is 3.05 m (10 ft), with front-mounted bolt-on extensions that hydraulically widen the mat for variable-width work such as multi-lane roads, parking lots, and airport paving. Screed plate heat comes from four diesel burners as standard, two on the main screed and one on each extension, or from an electric-heat plate option. Cat marketed the AS2301 alongside sibling extendible screeds such as the AS2251 and AS2252C, differentiated mainly by base width and heat/extension configuration rather than by distinct successor generations.
Because the AS2301 has no powertrain, its used-market and parts activity centers on wear items rather than engine hours. Extension slide strips and gibs, main and extension screed plates, burner nozzles, electrodes, heat exchangers and thermocouple wiring, vibrator bearings and the screed's hydraulic hose circuit, and end-gate springs and tow-arm pins and bushings are the parts categories that turn over fastest. Buyers and parts counters need to confirm whether a given unit carries the AKC or AWC serial prefix and whether it is a diesel-burner or electric-heat build before ordering plates, extensions, or heater components, since hardware is not interchangeable across those configurations.
Below: full specifications, fluids & capacities, the factory service schedule, common service parts, verified fault codes, what owners discuss, attachment guidance, the complete assembly directory, and a serial-number reference. Complete parts lists with full OEM part numbers, exploded diagrams, quantities, and fitment data are available free in Heavy Parts AI.
Caterpillar AS2301 specifications
Engine
| Engine | None. The AS2301 is a non self-propelled screed, not a standalone paver. It has no engine of its own and draws hydraulic flow and electrical power from a compatible paving tractor. |
| Electrical system | 24V, matched to the carrying tractor's electrical system |
| Screed plate heating | Four diesel-fired burners (two on the main screed, one on each extender) with glow-plug ignition and a built-in 15-minute shutoff timer; fuel is supplied from the tractor, no separate onboard fuel tank capacity published |
Weights
| Screed weight (approximate, base unit) | 3355 kg (7,840 lb) |
| 305 mm (1 ft) bolt-on extension weight | 73 kg (160 lb) per extension |
| 610 mm (2 ft) bolt-on extension weight | 152 kg (335 lb) per extension |
Dimensions
| Length without end gates (front to rear) | 1478 mm (58 in) |
| Length with end gates (front to rear) | 1933 mm (76 in) |
| Width without end gates | 3.23 m (10 ft 7 in) |
| Width with end gates | 3.38 m (11 ft 1 in) |
| Height | 2309 mm (91 in) |
| Main/extender screed plate width (front to back) | 457 mm (18 in) |
| Walkway width | 476 mm (18.75 in), open-faced, slip-resistant |
| End gate length | 1283 mm (50.5 in) |
| Extender support tube diameter | 51 mm (2 in), two tubes per side |
Performance
| Standard paving width | 3.05 m (10 ft) |
| Paving range, hydraulically extendible | 3.05 - 5.49 m (10 - 18 ft) |
| Paving range, with bolt-on extensions | 3.05 - 7.32 m (10 - 24 ft) |
| Minimum paving width, with cutoff shoes | 2.44 m (8 ft) |
| Extender slope range | +10% to -3%, or +76 mm to -25 mm, power slope standard |
| Crown range | +10% to -3%, or +133 mm to -38 mm; hand-crank standard, power crown optional |
| Extender height adjustment increment | 6.4 mm (0.25 in) graduations, matched to main screed mat thickness |
| Vibrator frequency (main screed and extenders) | Adjustable 0 - 50 Hz (0 - 3,000 vpm) |
Service capacities (summary)
| Engine oil | Not applicable — no engine on this screed |
| Fuel tank | Not applicable — screed heating burners draw fuel from the tractor; no separate onboard tank capacity published |
| Cooling system | Not applicable — no engine on this screed |
| Hydraulic system | Electric-over-hydraulic extender and vibrator circuits powered by the tractor's hydraulic system; O-ring face seal fittings and high-pressure hose throughout; no separate reservoir capacity published for the screed itself |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
AS2301 fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Machine type / power source | Not applicable | AS2301 is a hydraulically extendible screed attachment mounted behind a host asphalt paver tractor, not a self-powered machine. It carries no engine, no coolant system, no transmission, no final drives, no axles, and no independent hydraulic reservoir — hydraulic flow for screed functions (extension, vibration, crown) is supplied by the host paver's hydraulic system, so those capacities are documented under the paver tractor, not the screed. |
| Screed heating system (diesel burners) | Not documented in publicly available service literature for this screed — confirm tank size against the data plate or dealer parts book | No. 2 diesel fuel (same fuel as the host paver's engine fuel), fed to four screed-mounted burners (two on the main screed, one on each extender) for plate pre-heat; no separate viscosity-by-climate fuel grade is called out for the burner circuit beyond standard diesel fuel seasonal blending. |
| Grease points (vibrator bearings, screed extension slides, end-gate and crown pivots) | Spec only — no reservoir; serviced by grease gun at each zerk fitting per the lubrication schedule | Cat multipurpose grease (NLGI-2 lithium-complex EP grease) or equivalent; no cold- vs warm-climate viscosity split is published specifically for the AS2301 screed fittings. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar AS2301 maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the AS2301 beyond the schedule
Predictive Maintenance & Fluid Analysis
The AS2301 has no engine to sample, so predictive work centers on the shared hydraulic circuit and the heat system. Pull periodic samples from the tractor's hydraulic reservoir feeding the vibrator motor and extension cylinders and watch for contamination trending, since dirty fluid shows up first as vibrator bearing wear or sluggish extension travel. Track burner warm-up time against baseline and log thermocouple readings; a slowing warm-up or drifting temperature reading usually flags a fouled nozzle, weak electrode, or failing sensor before it stops a paving run.
Corrective & Common Repairs
Most corrective calls on the AS2301 trace to three wear points: extension slides, vibrator bearings, and burner nozzles. Worn slide strips let extensions rack or bind under load and show up as an uneven mat edge; replace strips before the extension frame itself takes wear. Vibrator bearing wear announces itself as growl or vibration change at the handle rails; catch it before the shaft scores. Clogged or carbon-fouled burner nozzles cause cold spots and uneven compaction, so clean or swap nozzles at the first sign of an uneven heat pattern.
Overhaul & Rebuild Points
Overhaul work on the AS2301 is component-level, not engine teardown. Burner assemblies are typically rebuilt as a set: nozzles, electrodes, heat exchangers, and the wiring harness that feeds the thermocouples, since mixing old and new components reintroduces the same fault. Vibrator drive components and bearings get replaced together rather than piecemeal once wear shows in one. Extension slide strips and worn screed plates get swapped at the wear limit across all sections at once, and tow-arm pins and bushings get renewed together to keep the tractor mount tight.
Seasonal & Environment Servicing
Cold-weather paving lives or dies on burner performance: confirm all four burners light reliably and reach paving temperature within the OMM's warm-up window before starting a mat in low ambient temperatures, and keep fuel lines and filters clear of winter-blend gelling. Extend warm-up time and watch thermocouple readings more closely as ambient temperature drops. In wet or humid storage, protect burner ignition components and thermocouple wiring from corrosion between paving seasons. In hot weather, watch vibrator bearing temperature and extension slide lubrication, since heat accelerates grease breakdown and slide wear.
AS2301 fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| MID 119 CID 0924 FMI 05 | Burner control module signal circuit open on the paver burner control module | Loose or corroded connector, broken harness wire, or blown fuse between the screed burner control box and its control module; less commonly a failed module | Check power, ground, and harness continuity at the burner control box before replacing the module |
| MID 119 CID 0927 FMI 04 | Burner fuel pump relay circuit voltage below normal (shorted low) | Shorted relay coil or chafed wiring feeding the diesel fuel pump that supplies the screed's burners | Inspect the fuel pump relay and its wiring for a short to ground; bench-test and replace the relay if it fails |
| MID 119 CID 0928 / 0932 / 0936 / 0940 FMI 05 | Glow plug relay circuit open on one of the four burner positions (left extender, left main, right extender, right main) | Failed glow plug relay, open glow plug element, or broken wiring at that burner position, so the affected burner will not ignite | Use the CID to locate the affected burner zone, then check glow plug resistance and relay continuity before replacing parts |
| MID 119 CID 1201-1224 FMI 03 / 04 | Heat-zone thermocouple signal voltage above or below normal, indicating an open or shorted temperature sensor circuit on one screed heat zone | Damaged thermocouple wiring between the screed plate and control box, corroded connector, or a failed thermocouple probe | Check the numbered zone's thermocouple wiring and connector for continuity and corrosion; swap in a known-good thermocouple to confirm before replacing |
| CID 2555 / 2556 / 2557 / 2558 FMI 05 | Screed left or right extender extend/retract solenoid circuit open, so the hydraulic extension solenoid does not energize | Failed solenoid coil, disconnected connector, or blown fuse in the extender control circuit | Check solenoid coil resistance and wiring continuity, then verify extender switch operation before replacing the solenoid |
| CID 2563 / 2564 FMI 02 | Left or right station screed height adjustment switch signal erratic or intermittent | Worn or contaminated switch contacts, or damaged wiring at the operator's station on the screed | Clean and continuity-test the height adjustment switch and its harness; replace the switch if it reads open or erratic under load |
| MID 119 CID 0926 FMI 03 | Burner selector switch circuit voltage above normal (open circuit) | Open wiring or a failed selector switch used to choose which burner zones are active | Continuity-test the selector switch and its harness; replace the switch if it fails the test |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
AS2301 attachments & work tools
Machine identity and host compatibility
The AS2301 is a bolt-on/tow-behind asphalt screed unit, not a self-propelled paver. It mounts to a host tractor paver via the tow arms, with factory fit confirmed for the AP-655C, AP-800C/D and AP-1055B/D tracked paver family. Two serial-number production runs are documented (prefixes AKC and AWC); treat parts and heat-system wiring groups as prefix-specific.
Base screed frame and paving width
Standard (unextended) paving width is 3.05 m (10 ft), shared frame architecture with the sibling AS2251 screed. The frame is described as a heavy-duty, production-sized platform intended for both new-construction and overlay work at highway to parking-lot scale.
Bolt-on screed extensions
Front-mounted hydraulic extenders widen the pass, and additional bolt-on plate extensions are available in 305 mm (12 in) and 610 mm (24 in) increments per side. Extensions bolt to the heavy-duty extender frame rather than using a quick-attach coupler; final maximum width depends on how many sections are stacked, so confirm the achievable width for a given serial range with the dealer parts guide rather than assuming a single fixed figure.
Screed heating options
Two heat-system builds exist for this screed: a diesel-fired burner system (separate wiring and burner groups) with four burners, two on the main screed and one on each extender, feeding a replaceable baffled combustion chamber with flame deflectors; and an electric-heat system with resistive heaters, sensors and temperature controls on the main screed, extenders, and optional bolt-on extension plates. Extension plates themselves are ordered to match whichever heat system the base screed carries.
Vibratory compaction system
Compaction is powered by dedicated hydraulic gerotor motors, one circuit for the main-screed vibratory system and a second for the extender vibratory system. At least one bolt-on 610 mm (24 in) electric-heat extension variant is offered with its own vibration capability rather than relying on the main circuit alone.
Auger extensions
Auger extension sections are offered to match added screed width, keeping material feed in front of the widened screed plates and preventing starvation at the outer ends of an extended pass.
End gates
Spring-loaded, bolt-on end gates apply downward pressure so the gate follows the mat surface profile for a clean edge joint. Wear strips on the gates are replaceable rather than requiring full gate replacement.
Pre-strikeoff shields
Adjustable shields ahead of the main screed control how much material reaches the screed, reducing segregation and improving mat texture. Each shield has its own height-adjustment handle so the two sides can be set independently.
Screed plates and leveling hardware
Main and extension screed plates are abrasion-resistant alloy steel with a curved nose bar for precompaction and better material flow. A heavy-duty mounting platform plus a trailing-edge adjusting system speeds plate leveling and replacement, with plated hardware for corrosion resistance.
Mounting and grade-control interface
The screed connects to the host paver tractor through tow arms/pull points rather than any quick-coupler system; hydraulic and electrical lines to the screed use quick-disconnect fittings for the heat and vibration circuits. Mat thickness is governed by tow-point angle, tractor travel speed and the head of material in the auger chamber, consistent with standard floating-screed grade-control behavior on this paver family.
All AS2301 assemblies by section
Every catalogued assembly group for the Caterpillar AS2301. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Controls
197-5296 Adjuster Gp-Height
| 10***24 | Tube As; (Vertical) | 4 |
| 10***39 | Key-Square | 2 |
| 10***40 | Spacer; (10.74x17.14x7-mm Thk) | 2 |
201-5130 Adjuster Gp-Manual -Crown
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 2 |
| 13***49 | Cable As | 2 |
| 1F***47 | Bushing | 2 |
197-5277 Adjuster Gp-Manual -Crown
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 13***49 | Cable As | 1 |
| 19***77 | Adjuster Group-Manual; -Crown | 1 |
165-4722 Adjuster Gp-Power
| 16***29 | Motor Group-Power Adjuster | 2 |
| 16***22 | Adjuster Group-Power | 1 |
| 17***83 | Stud | 2 |
197-9844 Chain Gp-Screed
| 10***87 | Link-Connecting | 1 |
| 19***33 | Link-Offset | 1 |
| 19***44 | Chain Group-Screed | 1 |
165-4720 Control Gp-Thickness -Acme Cw
| 13***21 | Rod-Threaded; (1-5-Acme Thd, Lh) | 2 |
| 13***24 | Sleeve As-Adjustment | 2 |
| 16***20 | Control Group-Thickness; -Lh Thread | 1 |
165-4719 Control Gp-Thickness -Standard Ccw
| 13***20 | Rod-Threaded | 2 |
| 13***23 | Sleeve As-Adjustment | 2 |
| 16***19 | Control Group-Thickness; -Standard Ccw | 1 |
165-4718 Control Gp-Thickness -Standard Cw
| 13***07 | Rod | 2 |
| 13***08 | Sleeve As-Adjustment | 2 |
| 16***18 | Control Group-Thickness; -Standard Cw | 1 |
165-4721 Control Gp-Thickness -Acme Ccw
| 13***22 | Rod-Threaded; (1-5-Acme Thd) | 2 |
| 13***25 | Sleeve As-Adjustment | 2 |
| 16***21 | Control Group-Thickness; -Rh Thread | 1 |
197-5288 Crown Gp
| 10***39 | Key-Square | 1 |
| 11***50 | Sprocket; (12-Teeth) | 1 |
| 19***83 | Bolt-Shoulder; (3/8-16x0.63-In) | 1 |
197-5278 Crown Gp-Power
| 16***29 | Motor Group-Power Adjuster | 1 |
| 19***78 | Crown Group-Power | 1 |
| 4L***54 | Capscrew; (3/8-16x21 In) (Gd8) (Hex Hd) (4-Roller) | 2 |
196-2503 Jack Gp-Height Adjuster
| 10***64 | Bearing-Thrust | 2 |
| 11***49 | Worm | 1 |
| 19***03 | Jack Group-Height Adjuster | 1 |
165-3729 Motor Gp-Power Adjuster
| 07***77 | Bushing-Terminal | 2 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 10***87 | Sleeve; (26-cm) | 0 |
236-0474 Motor Gp-Power Adjuster
| 07***77 | Bushing-Terminal | 2 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 10***87 | Sleeve; (26-cm) | 0 |
197-9850 Shaft Gp-Drive
| 17***69 | Kit-Bearing; (Universal Joint) | 1 |
| 19***11 | Shaft As | 1 |
| 19***12 | Spindle As | 1 |
197-9849 Shaft Gp-Drive
| 17***69 | Kit-Bearing; (Universal Joint) | 1 |
| 19***11 | Shaft As | 1 |
| 19***45 | Spindle As | 1 |
Electrical And Starting System
122-9303 Buffer Gp-Sensor -Material Height
| 12***03 | Buffer Group-Sensor; -Material Height-Propel Forward, Reverse-Propel Speed Dial | 1 |
| 15***60 | Kit-Connecting Plug; (3-Pin)(Engine Sensor Wiring Harness) | 1 |
| 15***71 | Kit-Connecting Plug; (4-Pin) | 1 |
197-5283 Wiring Gp-Screed -Diesel Heat
| 08***51 | Film-Warning; (Lighting Screed Burner) | 2 |
| 10***01 | Kit; (Receptacle) (12-Pin) (Includes Receptacle As & Wedge) | 1 |
| 10***03 | Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge) | 1 |
197-9827 Wiring Gp-Screed
| 17***65 | Plug As-Connector | 1 |
| 19***92 | Harness As-Screed; (Paver To Screed) | 1 |
| 19***96 | Panel Group-Electronic; -Material Height, Rh | 1 |
197-9828 Wiring Gp-Screed
| 19***98 | Panel Group-Electronic; -Material Height-Rh | 1 |
| 19***99 | Panel Group-Electronic; -Material Height-Lh | 1 |
| 19***28 | Wiring Group-Screed | 1 |
Electrical System
116-4490 Box Gp-Extension
| 09***17 | Washer | 4 |
| 10***54 | Box-Extension | 1 |
| 10***48 | Harness As-Screed; (Extender) | 1 |
196-1295 Box Gp-Screed Control -Rh
| 10***04 | Kit-Receptacle; (4-Pin)(Start Switch) | 1 |
| 15***60 | Kit-Connecting Plug; (3-Pin)(Engine Sensor Wiring Harness) | 1 |
| 15***74 | Kit-Connecting Plug; (6-Pin)(Cat Electronic Display Harness) | 2 |
229-3131 Box Gp-Screed Control -Lh
| 10***04 | Kit-Receptacle; (4-Pin)(Start Switch) | 1 |
| 15***60 | Kit-Connecting Plug; (3-Pin)(Engine Sensor Wiring Harness) | 3 |
| 15***74 | Kit-Connecting Plug; (6-Pin)(Cat Electronic Display Harness) | 2 |
229-3132 Box Gp-Screed Control -Rh
| 10***04 | Kit-Receptacle; (4-Pin)(Start Switch) | 1 |
| 15***60 | Kit-Connecting Plug; (3-Pin)(Engine Sensor Wiring Harness) | 3 |
| 15***74 | Kit-Connecting Plug; (6-Pin)(Cat Electronic Display Harness) | 2 |
196-1294 Box Gp-Screed Control -Lh
| 10***04 | Kit-Receptacle; (4-Pin)(Start Switch) | 1 |
| 15***60 | Kit-Connecting Plug; (3-Pin)(Engine Sensor Wiring Harness) | 1 |
| 15***74 | Kit-Connecting Plug; (6-Pin)(Cat Electronic Display Harness) | 1 |
197-5284 Control Ar-Manual Burner
| 19***82 | Lines Group-Burner; -Diesel Heat | 1 |
| 19***83 | Wiring Group-Screed; -Diesel Heat | 1 |
| 19***84 | Control Ar-Manual Burner | 1 |
196-1299 Panel Gp-Electronic -Material Height-Lh
| 10***03 | Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge) | 1 |
| 12***03 | Buffer Group-Sensor; -Material Height-Propel Forward, Reverse-Propel Speed Dial | 1 |
| 13***48 | Potentiometer As; (Rh Conveyor Speed Dial) | 1 |
196-1296 Panel Gp-Electronic -Material Height, Rh
| 10***03 | Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge) | 1 |
| 10***05 | Kit-Receptacle; (6-Pin)(Display Monitor Harness) | 1 |
| 11***83 | Relay-Time Delay; (Electric Heat) | 1 |
196-1297 Panel Gp-Electronic -Material Height
| 10***03 | Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge) | 1 |
| 10***05 | Kit-Receptacle; (6-Pin)(Display Monitor Harness) | 1 |
| 19***97 | Panel Group-Electronic; -Material Height | 1 |
196-1298 Panel Gp-Electronic -Material Height-Rh
| 10***03 | Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge) | 1 |
| 11***83 | Relay-Time Delay; (Electric Heat) | 1 |
| 12***03 | Buffer Group-Sensor; -Material Height-Propel Forward, Reverse-Propel Speed Dial | 1 |
Frame And Body
225-2317 Arm Gp-Drop
| 11***99 | Pin As-Pivot | 2 |
| 13***20 | Shaft | 2 |
| 13***77 | Lockout | 2 |
197-5298 Arm Gp-Drop
| 11***99 | Pin As-Pivot | 2 |
| 13***20 | Shaft | 2 |
| 13***77 | Lockout | 2 |
197-5286 Carriage Gp-Extender
| 16***95 | Frame As; (Rh) | 1 |
| 16***96 | Frame As-Lh | 1 |
| 16***09 | Support-Slide | 8 |
239-5628 Carriage Gp-Extender
| 18***25 | Scraper; (Brass) | 4 |
| 19***57 | Scraper As | 4 |
| 1A***68 | Nut | 6 |
197-5297 Deflector Gp
| 16***24 | Rod-Threaded | 4 |
| 16***25 | Rod-Threaded | 4 |
| 16***26 | Turnbuckle | 4 |
197-5287 Frame Gp-Screed
| 10***68 | Grip-Handle | 2 |
| 10***84 | Screw-Flat Head; (1/2-13x1.5-In)(22.22x7.94x1/2-13 Thd) | 6 |
| 14***66 | Plate | 1 |
197-5299 Gate Gp-End
| 10***68 | Grip-Handle | 2 |
| 10***35 | Support As | 2 |
| 10***09 | Chain; (14-In Each) | 0 |
216-6989 Gate Gp-End
| 10***68 | Grip-Handle | 2 |
| 10***35 | Support As | 2 |
| 10***09 | Chain; (14-In Each) | 0 |
197-5293 Plate Gp-Screed -Diesel Heat
| 16***89 | Plate As; (Rh) | 1 |
| 16***90 | Plate As; (Lh) | 1 |
| 18***31 | Bolt-Special; (1 1/4-12-2athd) | 4 |
Fuel System
197-5291 Burner Gp -Diesel Heat
| 03***12 | Screw-Forming; (10-24x0.5-In) | 24 |
| 04***65 | Screw 19.05 mm(.750 In.) Long | 16 |
| 10***97 | Wheel-Blower | 4 |
197-5282 Lines Gp-Burner -Diesel Heat
| 00***10 | Tee; (Pipe) | 1 |
| 08***91 | Adapter | 1 |
| 11***83 | Connector | 1 |
Hydraulic System
165-4654 Cylinder Gp-Hydraulic
| 16***54 | Cylinder Group-Hydraulic | 1 |
| 20***62 | Kit-Seal; (Extender Cylinder) | 1 |
| 5D***86 | Locknut; (7/8-14-Thd) | 1 |
197-9766 Cylinder Gp-Hydraulic -Slope
| 00***39 | Bearing-Aligning; (Self Aligning) | 1 |
| 14***61 | Plug | 2 |
| 14***62 | Seal-Washer | 2 |
162-7977 Cylinder Gp-Hydraulic
| 00***39 | Bearing-Aligning; (Self Aligning) | 1 |
| 14***61 | Plug | 2 |
| 14***62 | Seal-Washer | 2 |
197-5289 Lines Gp-Extender
| 10***02 | Valve Group-Solenoid; -Extender, Slope | 2 |
| 14***18 | Connector As | 2 |
| 14***74 | Elbow As | 2 |
197-5285 Lines Gp-Slope
| 10***02 | Valve Group-Solenoid; -Extender, Slope | 2 |
| 10***40 | Spacer; (10.74x17.14x7-mm Thk) | 4 |
| 10***84 | Pin As | 4 |
197-5290 Lines Gp-Vibratory
| 10***05 | Plate | 10 |
| 15***83 | Clamp-Half | 14 |
| 17***15 | Strap; (Dual Clamp) | 6 |
8i-0721 Motor Gp-Gerotor -Vibratory
| 06***39 | Seal-O-Ring | 1 |
| 16***21 | Kit-Bearing; (Vibratory Motor) | 1 |
| 4D***86 | Seal--Bushing To Selector Valve Group | 1 |
138-4308 Valve Gp-Control
| 13***08 | Valve Group-Control | 1 |
| 15***09 | Orifice | 1 |
| 15***10 | Valve; (Sensing) | 1 |
208-1631 Valve Gp-Control -Vibratory
| 19***47 | Valve Group-Control; (Vibratory) | 1 |
| 19***41 | Cartridge As-Valve | 1 |
| 20***57 | Kit-Seal; (Flow Control Valve) | 1 |
103-3602 Valve Gp-Solenoid -Extender, Slope
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 2 |
| 10***02 | Valve Group-Solenoid; -Extender, Slope | 1 |
| 11***21 | Coil | 2 |
197-5294 Vibratory Gp
| 10***90 | Coupling | 4 |
| 10***95 | Bearing | 8 |
| 10***39 | Key-Square | 4 |
Implements
185-5419 Extension Gp-Screed -Diesel Heat, 12-In
| 18***19 | Extension Group-Screed; -Diesel Heat, 12-In | 1 |
| 1A***68 | Nut | 4 |
| 20***59 | Plate | 1 |
185-5418 Plate Gp-Bevel End
| 18***18 | Plate Group-Bevel End | 1 |
| 19***58 | Plate As | 2 |
| 5P***76 | Washer Guard To Support Assembly And Guard Assembly | 6 |
185-5416 Plate Gp-Bevel End
| 18***16 | Plate Group-Bevel End | 1 |
| 19***60 | Plate As | 2 |
| 5P***76 | Washer Guard To Support Assembly And Guard Assembly | 6 |
185-5415 Plate Gp-Bevel End
| 18***15 | Plate Group-Bevel End | 1 |
| 19***62 | Plate As | 2 |
| 5P***76 | Washer Guard To Support Assembly And Guard Assembly | 6 |
185-5417 Plate Gp-Bevel End
| 18***17 | Plate Group-Bevel End | 1 |
| 19***56 | Plate As | 2 |
| 5P***76 | Washer Guard To Support Assembly And Guard Assembly | 6 |
104-4482 Shoe Gp-Cutoff
| 10***82 | Shoe Group-Cutoff | 1 |
| 10***82 | Shoe As-Cutoff; (1 Foot) | 1 |
| 10***88 | Shoe As-Cutoff; (2 Foot) | 1 |
Machine Arrangement
197-5300 Screed Ar
| 19***85 | Lines Group-Slope | 1 |
| 19***86 | Carriage Group-Extender | 1 |
| 19***87 | Frame Group-Screed | 1 |
Operator Station
197-5295 Platform Gp
| 19***83 | Bolt-Shoulder; (3/8-16x0.63-In) | 4 |
| 19***01 | Bracket | 2 |
| 19***03 | Platform As; (Extender) | 2 |
Service Equipment And Supplies
197-5292 Plate & Film Gp
| 08***51 | Film-Warning; (Lighting Screed Burner) | 2 |
| 12***56 | Film; (Warning) (No Step) (On Top Of Hood Behind Cab On Each Side) (On Each Fender Flare) | 2 |
| 15***79 | Film-Instruction; (Grease)(Instructions) | 2 |
AS2301 serial number reference
The AS2301 screed carries its own PIN plate, separate from the towing paver's plate, riveted to the screed main frame near the operator's walkway or heater control box. Read the first three characters as the prefix identifying the screed's production series, and the following five digits as the sequential unit number within that series (for example AKC00001-UP or AWC00001-UP).
| Prefix | Identifies | Notes |
|---|---|---|
| AKC | AS2301 screed, diesel-heat wiring/electrical group | Serial range AKC00001-and-up per Cat parts-catalog listings for the screed's wiring group. Production years not documented — confirm with dealer. |
| AWC | AS2301 screed, wiring/burner (heat) group | Serial range AWC00001-and-up per Cat parts-catalog listings covering wiring and burner groups, dated 2003. A field-listed 2008-build AP-1055D paver carried an AS2301 screed serial AWC01036 fitted with electric-heat plates as an option, so heat type (diesel vs electric) is a configurable option rather than a prefix-specific trait. Confirm exact year with dealer. |
Frequently asked questions
What powers the AS2301 screed?
The AS2301 has no engine of its own. It mounts to a Cat paver tractor, such as the AP-1000D/AP-1055D-class machines, and draws hydraulic power from that tractor to run its vibrator system and extension cylinders. Screed-plate heat comes from its own four diesel burners or an electric-heat option, controlled from the tractor's screed panel.
What does the AS2301 weigh?
Cat does not publish a single fixed operating weight for the AS2301 the way it would for a self-propelled machine, since weight varies with which extensions and heat package, diesel-burner or electric, are fitted. As an attachment it ships mounted to or alongside its host tractor rather than as a standalone unit with one catalog weight.
What paving width does the AS2301 cover?
Standard base width is 3.05 m (10 ft). Front-mounted bolt-on extensions widen the mat hydraulically for variable-width work such as multi-lane roads and airport paving; the maximum width reached depends on which extension package is fitted, so treat any published maximum-width figure as configuration-specific rather than a single number for the model.
What AS2301 owners discuss
How long does the AS2301 screed take to warm up, and what counts as normal burner behavior?
What wears first on the extension slides and augers, and how do owners keep ahead of it?
Is vibration or bearing noise from the main screed normal, and when does it mean trouble?
What crown and slope-control quirks show up in the field on this class of screed?
What mounting and tow-arm wear is typical on the AS2301?
Do owners report electrical or sensor issues specific to the AS2301, and what is the usual root cause?
What should a buyer inspect on a used AS2301 screed before purchase?
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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