1. Introduction
This service manual provides comprehensive instructions for the maintenance, repair, and overhaul of the Bobcat E35 Compact Excavator. It is an essential resource for technicians and owners to ensure the proper functioning and longevity of the equipment.
This manual specifically covers Bobcat E35 Compact Excavators with the following serial numbers:
- S/N A93K11001 & Above
- S/N AC2P11001 & Above
Refer to this manual for detailed procedures, specifications, and safety guidelines.
2. Safety Information
Always prioritize safety when performing any service or maintenance on the Bobcat E35 Compact Excavator. Failure to follow safety precautions can result in serious injury or death.
- Read the Manual: Before operating or servicing the machine, thoroughly read and understand all instructions and warnings in this manual and the operator's manual.
- Personal Protective Equipment (PPE): Always wear appropriate PPE, including safety glasses, gloves, hard hat, and steel-toed boots.
- Machine Stability: Ensure the excavator is on a stable, level surface and properly supported before beginning any work.
- Lock Out/Tag Out: Disconnect the battery and relieve hydraulic pressure before working on hydraulic or electrical systems.
- Hot Components: Be aware of hot engine parts, hydraulic fluid, and exhaust systems. Allow components to cool before servicing.
- Hydraulic Pressure: Hydraulic systems operate under high pressure. Use extreme caution and follow proper procedures for relieving pressure and disconnecting lines.
- Lifting: Use appropriate lifting equipment and techniques when handling heavy components.
For a complete list of safety warnings and procedures, consult the dedicated safety section within this manual.
3. Product Overview
The Bobcat E35 is a compact excavator designed for various construction, landscaping, and utility applications. It features a robust design, powerful hydraulics, and a comfortable operator environment. Understanding its key components is crucial for effective service.

Figure 3.1: Cover of the Bobcat E35 Compact Excavator Service Manual. The image displays the Bobcat logo, the manual title "Service Manual E35 Compact Excavator," and the applicable serial numbers (S/N A93K11001 & Above, S/N AC2P11001 & Above). A line drawing of the E35 excavator is prominently featured on the cover.
Key systems include the engine, hydraulic system, electrical system, undercarriage, and workgroup (boom, arm, bucket). Each system requires specific knowledge for diagnosis and repair, detailed within subsequent sections of this manual.
4. Preparing for Service
Before commencing any service or repair work, proper preparation is essential to ensure safety and efficiency.
- Park on Level Ground: Position the excavator on a firm, level surface.
- Lower Workgroup: Fully lower the boom, arm, and bucket to the ground.
- Engage Parking Brake: Apply the parking brake if equipped, or block the tracks to prevent movement.
- Stop Engine: Turn off the engine and remove the key.
- Relieve Pressure: Follow specific procedures to relieve pressure from the hydraulic system.
- Disconnect Battery: Disconnect the negative battery cable to prevent accidental starting or electrical shorts.
- Clean Machine: Clean the work area and the machine to prevent contamination of components.
- Gather Tools: Ensure all necessary tools, diagnostic equipment, and replacement parts are readily available.
Always consult the specific section of this manual relevant to the task for detailed preparation steps.
5. Operational Checks After Service
After completing any service or repair, it is critical to perform operational checks to verify proper function and safety before returning the machine to full service.
- Fluid Levels: Check all fluid levels (engine oil, hydraulic fluid, coolant) and top up as necessary.
- Leak Inspection: Visually inspect for any leaks around newly serviced components or connections.
- Fastener Torque: Verify that all fasteners, especially those on critical components, are tightened to the specified torque.
- System Functionality: Start the engine and slowly test all hydraulic functions (boom, arm, bucket, swing, travel) through their full range of motion.
- Warning Lights/Gauges: Observe the instrument panel for any warning lights or abnormal gauge readings.
- Noise and Vibration: Listen for unusual noises and feel for excessive vibrations during operation.
- Safety Features: Test all safety features, such as the seat belt, horn, and warning alarms.
Address any anomalies immediately before allowing the excavator to be used for work.
6. Maintenance Procedures
Regular and scheduled maintenance is vital for the performance, reliability, and lifespan of the Bobcat E35 Compact Excavator. This manual details various maintenance tasks, including:
- Engine Maintenance: Oil and filter changes, fuel filter replacement, air filter inspection and cleaning, cooling system checks.
- Hydraulic System Maintenance: Hydraulic fluid and filter replacement, hose and fitting inspection, cylinder seal checks.
- Undercarriage Maintenance: Track tension adjustment, roller and idler inspection, track component lubrication.
- Electrical System Checks: Battery inspection and cleaning, wiring harness checks, fuse and relay inspection.
- Lubrication: Greasing points on the workgroup, swing bearing, and other pivot points.
- General Inspection: Daily and periodic checks for wear, damage, and loose components.
Refer to the specific maintenance schedule and detailed procedures provided in the relevant chapters of this manual.
7. Troubleshooting Guide
This section provides a general guide to diagnosing common issues that may arise with the Bobcat E35 Compact Excavator. For detailed diagnostic charts and repair steps, consult the specific system chapters.
| Symptom | Possible Cause | Action |
|---|---|---|
| Engine fails to start | Low battery, fuel issue, electrical fault | Check battery charge, fuel level, starter motor connections. |
| Loss of hydraulic power | Low hydraulic fluid, clogged filter, pump issue | Check hydraulic fluid level, replace filter, inspect pump. |
| Overheating engine | Low coolant, clogged radiator, faulty thermostat | Check coolant level, clean radiator fins, test thermostat. |
Always perform a thorough inspection and systematic diagnosis before attempting repairs.
8. Specifications
The Bobcat E35 Compact Excavator features the following general specifications. Detailed specifications for individual components (engine, hydraulics, electrical) are provided in their respective sections of this manual.
- Model: Bobcat E35 Compact Excavator
- Part Number: 6987276
- Manual Type: Service Manual
- Pages: 992
- Serial Numbers Covered: S/N A93K11001 & Above, S/N AC2P11001 & Above
- Manufacturer: Bobcat
- ASIN: B01FNF4L2E
- Date First Available: September 9, 2016
For precise measurements, fluid capacities, and torque values, refer to the technical data tables within this manual.
9. Support and Additional Resources
For further assistance, genuine Bobcat parts, or professional service, please contact your authorized Bobcat dealer. Always use genuine Bobcat parts to ensure compatibility and maintain the integrity of your equipment.
Additional resources may include:
- Official Bobcat Website: www.bobcat.com
- Authorized Bobcat Dealer Locator: Consult the Bobcat website for the nearest service center.
This manual is intended to be used in conjunction with proper training and safety practices.





