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Chapter Overview
This chapter provides removal and installation
procedures for the hydraulic pumps and motors.
Personal Safety
Improper or incomplete maintenance/repair of a Compact
Track Loader can be dangerous and may result in machine
damage, injury or death.
Do not attempt to perform any type of repair or maintenance
on a Compact Track Loader until you have read and fully
understood the information in this manual. Refer to the
Operation and Maintenance manual for instructions
regarding proper machine operation techniques before
operating any Compact Track Loader.
Prior to performing any type of service work on a Compact
Track Loader, read and understand Chapter 1 (Product
Safety) for personal safety information.
Machine Preparation
Accidental machine starting can cause injury or death to
personnel working on a Compact Track Loader.
As a precaution, disconnect the battery cables from the
battery terminals, tape the battery clamps and remove the
key from the ignition switch prior to performing any service
work on a Compact Track Loader.
Place a "Do Not Operate" tag prominently on the machine to
inform personnel that the machine is being worked on.
NOTICE
he hydraulic system fluid should be changed following
T
any hydraulic component service according
to the procedure described on page 4-14.
11. Hydraulic Pumps/Motors
Removal and Installation
Removal and installation procedures are provided for
the following hydraulic components.
Charge Pump
Auxiliary Pump
•
Tandem (Drive) Pump
•
Drive Motor
•
•
Note: Procedures are provided for only those hydraulic
components listed above. However, exploded parts diagrams
exist in the PT-100G Parts manuals to serve as visual aids in
the removal and installation of other system components.
Note: Refer to pages 3-1, 3-2 and 3-3 for additional motor,
pump and hydraulic system information.
Charge Pump
Removal
Required Tools
Screwdriver
Combination Wrench
Socket Wrench
Remove any attachment, relax all actuators and
make sure the hydraulic oil is cool before
removing any components or lines. Hot or
pressurized oil can cause personal injury.
Collect and contain liquids in suitable containers.
Note:
Dispose of all liquids according to local regulations and
mandates.
During disassembly, plug and cap all hoses and fittings to
prevent system fluid loss or contamination.
1. Lower the lift arms to the ground and relax the
bucket tilt/curl cylinders to relieve pressure within
hydraulic system.
2. Turn the ignition switch to the OFF position and
remove the key to avoid accidental start.
3. Drain the hydraulic fluid. Refer to page 4-14 for the
hydraulic fluid and filter change procedure.
11-1
(fig. 11-1)
NOTICE
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Troubleshooting
