Caterpillarexcavator

Caterpillar E240B

Maintenance schedule, common problems & OEM parts breakdown

The Caterpillar E240B is a mid-size hydraulic excavator designed for heavy earthmoving, trenching, and construction applications. This machine features a turbocharged 3116 engine delivering 148 hp (110 kW) at 2/200 rpm. It operates within a weight class of approximately 50,706 lb (23,000 kg). The E240B is offered in multiple configurations, including various boom and stick options such as 7'87 " (2200 mm), 9'110 " (2800 mm), and 11'138 " (3500 mm) lengths. It belongs to a lineage of Caterpillar excavators that includes the E240 and E240C series.

Across generations, the E240B maintained its reputation for durability through robust hydraulic systems and the reliable 3116 powertrain. In today's used equipment market, this model remains highly valued for its availability of parts and straightforward maintenance requirements. Its presence in the secondary market is driven by the machine's versatility across different attachment packages and its ability to perform in diverse terrains, making it a staple for contractors managing mid-range excavation workloads.

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 E240B specifications

Engine

Model	3116
Net Power	148 hp (110 kW) @ 2200 rpm
Displacement	402.8 cu in (6,601 cc)
Cylinders	6
Aspiration	turbocharged

Weights

Operating Weight	50,706.4 lb (23,000 kg)
Ground Pressure	5.69–5.7 psi

Dimensions

Shipping Length	31.93 ft (9.73 m)
Shipping Height	9.91 ft (3 m)
Width to Outside of Tracks	10.47–11.09 ft (3–3.38 m)
Tail Swing Radius	9.52 ft (2.9 m)
Track Shoe Width	31.5 in (80 cm)
Ground Clearance	1.55 ft (0.47 m)
Length of Track on Ground	10.96–12.21 ft (3.34–3.72 m)
Height to Top of Cab	9.78 ft (2.98 m)
Removal Counterweight Clearance	3.61–3.6 ft (1.1 m)
Track Gauge	7.85–8.47 ft (2–2.58 m)

Performance

Max Digging Depth	20.05–24.32 ft (6.11–7.41 m) varies by configuration/series
Max Reach at Ground	30.84–34.78 ft (9.4–10.6 m) varies by configuration/series
Max Loading Height	20.64–22.25 ft (6.3–6.78 m) varies by configuration/series
Max Cutting Height	30.16–31.93 ft (9.19–9.73 m) varies by configuration/series
Max Vertical Wall Digging Depth	16.51–21.49 ft (5.03–6.55 m) varies by configuration/arm length
Swing Speed	10.2 rpm
Max Travel Speed	2–2.3 mph (3.2–3.7 kph)
Drawbar Pull	37,180 lb (16,865 kg)

Forces

Hydraulic System Relief Valve Pressure	3983 psi
Hydraulic Pump Flow Capacity	121.6–122 gpm (460 lpm)

Service capacities (summary)

Fuel Tank	74 gal (280 l)
Hydraulic System Fluid Capacity	79–79.3 gal (300 l)
Engine Oil Capacity	4 gal (15 l)
Cooling System Fluid Capacity	7 gal (26 l)
Swing Drive Fluid Capacity	2.6–2.6 gal (10 l)

Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.

E240B fluids & capacities

System	Capacity	Recommended fluid
Engine crankcase (with filter)	15 L (4 gal)	Any decent 15W-40; use SAE 10W/30 if temperatures are below 15°F (-9°C)
Cooling system	26 L (7 gal)	Cat ELC (Extended Life Coolant); use high-quality ethylene glycol-based coolant compatible with Caterpillar engines
Fuel tank	280 L (74 gal)
Hydraulic system total AND hydraulic tank	300 L (79 gal) to 301.5 L (79.6 gal) varies by configuration/series	Cat HYDO Advanced Oils; SAE 10W oil meeting Caterpillar TO-4 specification
Swing drive	10 L (2.6 gal) to 11.4 L (3 gal) varies by configuration/series

Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.

Caterpillar E240B maintenance schedule

Service interval	Tasks
Every 10 h	Check engine oil level and condition Inspect hydraulic fluid level via sight glass Verify coolant level and cap integrity Drain water from fuel/water separator Check air filter restriction indicator Inspect pins, bushings, and attachment points for wear
Every 250 h	Change engine oil and filter Grease all boom, stick, bucket, and swing points Check air filter primary element Inspect belts, hoses, and clamps Perform visual inspection of undercarriage components
Every 500 h	Replace fuel filter Replace hydraulic return filter Perform battery service and terminal inspection Conduct detailed undercarriage inspection Test coolant with SCA analysis
Every 1,000 h	Perform hydraulic oil sample analysis (S.O.S) Inspect turbocharger for defects Check ROPS bolt torque Measure undercarriage wear components Inspect final drive oil level
Every 2,000 h	Change hydraulic system oil Perform coolant flush and replacement Conduct comprehensive structural inspection of boom and stick welds Evaluate major components for wear Replace worn belts and hoses

Servicing the E240B beyond the schedule

Predictive Maintenance & Fluid Analysis

Utilize Caterpillar S.O.S Services to monitor engine oil, hydraulic fluid, and coolant. Analyzing wear metals like iron or copper can detect pump or gear degradation before failure. For the E240B, monitoring hydraulic particle counts (ISO cleanliness) is critical for protecting the hydraulic pump. Use Cat HYDO Advanced oils to potentially extend drain intervals up to 3000 hours when adhering to strict sampling and filter change schedules.

Corrective & Common Repairs

Frequent repairs often involve hydraulic hose replacement due to abrasion or cracks. Monitor the hydraulic system relief valve pressure, rated at 3983 psi, to ensure proper digging force. If engine performance drops, inspect the turbocharger and air intake system for leaks or restrictions. Ensure all pins and bushings are regularly greased to prevent costly attachment point replacements caused by excessive play or structural wear.

Overhaul & Rebuild Points

Major overhaul milestones include a 2000-hour hydraulic oil change and coolant flush to prevent internal engine corrosion. During comprehensive structural inspections, evaluate boom and stick welds for fatigue. For the undercarriage, track wear measurements of shoes and rollers; replacing worn components early prevents much more expensive sprocket or frame repairs. Evaluate the 3116 engine's piston and ring condition during long-term rebuild cycles.

Seasonal & Environment Servicing

In dusty or quarry environments, check air filters daily and clean radiator fins frequently to prevent overheating. For cold weather operations, use SAE 10W/30 engine oil if temperatures drop below 15°F (-9°C) to ensure reliable starting. In high-moisture areas, prioritize draining the fuel/water separator every shift to prevent fuel system contamination and maintain hydraulic system integrity.

E240B fault codes & troubleshooting

Code	Meaning	Likely cause	What to do
E360	Engine Coolant Temperature — High	Low coolant level, failed thermostat, or water pump issue	Diagnose cooling system; do not operate until resolved
E361	Engine Coolant Temperature — Very High (Shutdown)	Severe cooling system failure	Engine shutdown required; perform full cooling system diagnosis
110-0	Engine Coolant Temp — Above Normal	Low coolant level or thermostat failure	Inspect cooling system, refill coolant, and test thermostat
110-3	Engine Coolant Temp Sensor — Voltage High	Open circuit or sensor failure	Check wiring and replace sensor if confirmed faulty
174-3	Engine Fuel Temperature — Voltage Above Normal	Open circuit in sensor wiring	Inspect harness and replace sensor if necessary
190-8	Engine Speed — Abnormal Frequency	Speed sensor air gap, sensor failure, or tone ring damage	Check sensor gap and test speed sensor and tone ring
2458-2	DPF #1 Differential Pressure — Erratic	Plugged pressure ports or failing sensor	Clean pressure ports and test sensor; verify DPF soot load
41-3	8-Volt DC Supply — Voltage Above Normal	Short to power on 8V reference circuit	Inspect sensors sharing the 8V supply and isolate fault
41-4	8-Volt DC Supply — Voltage Below Normal	Short to ground on 8V reference circuit	Disconnect sensors one at a time to locate short
2348-9	SAE J1939 Data Link #2 — Abnormal Update Rate	CAN bus wiring damage or termination fault	Check CAN wiring and measure termination resistance

Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.

E240B attachments & work tools

Buckets

Capacity ranges from 0.8 yd³ (0.6 m³) to 2.4 yd³ (1.8 m³), with a reference capacity of 1.3 yd³ (1.0 m³). Available configurations include digging buckets, ditching buckets, and cutting edges; attachment method includes pin-on or coupler options.

Hydraulic hammers

Compatible with sawhead attachments for specialized cutting tasks.

Quick couplers

Coupler attachments are available for the E240B series to facilitate rapid tool changes.

Thumbs/grapples

Thumb kits are available for improved material handling and control.

Rippers

Ripper attachments are supported for heavy-duty ground breaking applications.

Hydraulic-kit notes

Machine features a hydraulic pump flow capacity of 121.6 gal/min (460 lpm) and a relief valve pressure of 3983 psi (27,465 kPa). Hydraulic kits are available for specific attachment requirements.

All E240B assemblies by section

Every catalogued assembly group for the Caterpillar E240B. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

E240b, El240b Telescopic Stick

Clamshell-0.8 Cubic Meter (1 Cubic Yard)-Part 1 Of 4

Clamshell-0.8 Cubic Meter (1 Cubic Yard)-Part 3 Of 4

Clamshell-0.5 Cubic Meter (5/8 Cubic Yard)-Part 4 Of 4

Clamshell-0.5 Cubic Meters (5/8 Cubic Yards)-Part 1 Of 4

Clamshell-0.8 Cubic Meter (1 Cubic Yard)-Part 2 Of 4

Clamshell-0.5 Cubic Meters (5/8 Cubic Yards)-Part 2 Of 4

Clamshell-0.5 Cubic Meters (5/8 Cubic Yards)-Part 3 Of 4

Clamshell-0.8 Cubic Meter (1 Cubic Yard)-Part 4 Of 4

Clamshell Cylinder-Part 1 Of 2

Clamshell Cylinder-Part 2 Of 2

Counter Weight

Hose Reel-Part 2 Of 2

Hose Reel-Part 1 Of 2

Slow Return Valve

Telescopic Cylinder-Part 2 Of 3

Telescopic Cylinder-Part 1 Of 3

Telescopic Cylinder-Part 3 Of 3

Telescopic Stick-Part 1 Of 4

Telescopic Stick-Part 3 Of 4

Telescopic Stick-Part 2 Of 4

Telescopic Stick-Part 4 Of 4

Transfer Group (Plates And Labels)

E240B serial number reference

Locate the ID plate on the machine outer frame. The prefix consists of the first three alphanumeric characters of the serial number or PIN.

Prefix	Identifies	Notes
9PF	E240B	Identified via transport dimension documentation; includes 3116 turbocharged engine configuration.
5WG	EL240B	Covers serial number range 5WG1 and up; identifies EL240B configuration.

Frequently asked questions

What engine powers the Caterpillar E240B?

The E240B is equipped with a turbocharged 3116 engine, producing 148 hp (110 kW) at 2200 rpm.

What is the operating weight of this excavator?

The machine has an operating weight of approximately 50,706.4 lb (23,000 kg).

Which model replaced the E240B?

The provided documentation identifies the E240C as a related subsequent model in the series.

What E240B owners discuss

What are the primary engine specifications and model for the Caterpillar E240B?

The machine is powered by a turbocharged 3116 engine with a displacement of 403 cu in (6,601 cu cm). It produces 148 hp (110 kw) at 2/200 rpm.

What hydraulic system capacities and pressures should be monitored?

The hydraulic system fluid capacity is 79 gal (300 l). The hydraulic system relief valve pressure is rated at 3,983 psi. The pump flow capacity is 122 gpm (460 lpm).

What are the typical undercarriage and track specifications for this model?

The machine uses 32 in (80 cm) shoes with 46 shoes per side. The track gauge is 6.6 ft (2 m). Each side features 7 track rollers.

What common electrical issues are reported regarding the dashboard?

Users have reported issues where gauges fail to function when the ignition is switched on, often linked to blowing fuses. Due to part unavailability for older units, some owners install aftermarket gauges.

What fluid specifications are recommended for maintenance?

For hydraulic systems, use Cat HYDO Advanced oils or equivalent SAE 10W oil meeting Caterpillar TO-4 specification. For the engine, a high-quality 15w-40 off-road oil is recommended; use SAE 10W/30 for temperatures below 15°F (-9°C).

What should be inspected when purchasing a used E240B?

Verify the condition of the rails and sprockets. Check if the unit is 'dry and tight' to ensure structural integrity, and confirm the presence of quick couplers and bucket configurations.

Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.

Need a specific E240B part?

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