Hydraulic Pressure Check & Adjustment; Chapter Overview; Personal Safety; Machine Preparation - Terex PT-30 Service Manual

Chapter Overview

This chapter provides a overview of checking and
setting pressures. It is important to contact the
manufacturer for assistance before beginning these
procedures.

Personal Safety

Improper or incomplete maintenance/repair of a Compact
Track Loader can be dangerous and may result in ma-
chine damage, injury or death.
Do not attempt to perform any type of repair or mainten-
ance 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 in-
structions 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 Chap-
ter 1 (Product Safety) for personal safety informa-
tion.

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 per-
forming any service work on a Compact Track Load-
er.
Place a "Do Not Operate" tag prominently on the
machine to inform personnel that the machine is be-
ing worked on.
17. Hydraulic Pressure
Check & Adjustment
Hydraulic Pressure
Adjustment Procedures
Adjustment and test procedures are provided for the
following transmission and drive components.
•
Charge Pressure Check & Adjustment
•
Drive-Pressure Relief Valve Adjustment
•
Auxiliary Valve Pressure Check & Adjustment

Charge Pressure Check

The service tools required for the charge pressure
check are listed in Table 0-1. Use manufacturer-
recommended tools whenever possible.
Table 0-1
Required Tools
Pressure Gauge
Combination Wrench
Socket Wrench
Note: The fuel tank SHOULD NOT be removed to per-
form this procedure.
Figure 0-1
1. Remove the floor pan.
17-1