Bobcat Auger 6904721 Operator’s & Maintenance Manual – PDF Download
$20.95
Operator’s manual for the Bobcat Hydraulic Auger 6904721.
Explains mounting, operation, and daily maintenance for skid steer and compact track loaders.
Includes hydraulic flow specs, torque data, bit installation, and safety decals.
Description
Bobcat Auger 6904721 Operator’s & Maintenance Manual – PDF Download
DESCRIPTION
Overview
This Bobcat Auger 6904721 Operator’s & Maintenance Manual provides detailed information for proper operation, safety, and maintenance of Bobcat’s hydraulic auger attachment. It applies to standard and high-flow auger drives used with skid steer loaders, compact track loaders, and mini-excavators.
The manual includes startup instructions, hydraulic setup data, bit installation and removal procedures, and correct safety decal placements.
IMAGES:
Safety Instructions
Hydraulic pressure hazard and entanglement warnings.
Overhead power line and buried utility precautions.
Decal locations and part numbers for replacement.
Lockout procedures during maintenance.
Protective equipment and safe lifting instructions.
Illustrations detail hose routing, quick-attach mounting, and positioning to prevent line pinching.
Operation
Step-by-step procedures for attaching auger to the loader or excavator.
Connection to auxiliary hydraulics with quick couplers.
Forward and reverse bit rotation control.
Operating speed guidelines vs. soil type.
Bit selection chart for standard, tree, and rock applications.
Also includes startup testing, torque verification, and adjustments for high-flow systems.
Maintenance
Maintenance charts define daily, weekly, and periodic tasks:
Inspect motor and planetary gearcase for leaks.
Check gear oil level every 50 hours.
Replace planetary oil every 1000 hours.
Inspect hoses, fittings, and pins for wear or cracks.
Verify mounting bolts and drive output fastener torque.
Store auger vertically with dust caps on couplers.
Troubleshooting
Covers mechanical and hydraulic issues such as:
Bit not rotating – inspect coupler engagement or motor blockage.
Excessive vibration – check shaft and bit straightness.
Low torque – test system flow rate or pressure relief valve.
Oil leakage – inspect O-rings and seals.
Slow operation – verify flow control setting or motor wear.
Technical Specifications
| Parameter | Value / Notes |
|---|---|
| Hydraulic Flow | 10 – 25 GPM |
| Pressure Range | 2000 – 3500 psi |
| Torque Output | 2400 – 3500 ft·lb |
| Output Shaft | 2″ hex / 2.56″ round |
| Drive Type | Hydraulic planetary |
| Lubrication | SAE 90 EP gear oil |
| Weight | Depends on mounting bracket and bit size |
| Compatible Bits | 6″–36″ earth, tree, or rock bits |
Included Sections
Safety & Decal Chart
Mounting and Removal Procedures
Operation and Bit Handling
Hydraulic Connection Diagrams
Maintenance Intervals
Torque Chart and Lubrication Table
Troubleshooting and Storage Procedures
Technical Specifications
FILE DETAILS
| File Name | 610975735-Auger-6904721-enUS-om.pdf |
|---|---|
| File Type | Searchable PDF |
| Language | English |
| Pages | 80 Pages (Approx.) |
| Publisher | Bobcat Company |
| Manual Type | Operator’s and Maintenance Manual |
| Edition | 6-10 (enUS) |
| File Size | ~8 MB |
| Access | Instant Digital Download |
