Section 6
Hydraulic System
20479283
8-2009/Rev 01
6-4
3. Turn the hex clockwise to increase operating pressure. Turn the hex counter-clockwise to
decrease pressure.
4. Tighten the locking nut and verify the low pressure setting.
Motor Maintenance
The motor should be inspected at regular intervals, approximately every 500 hours of operation or
every three months, whichever occurs first. Keep the motor clean and the ventilation openings
clear.
Hydraulic Compensator Maintenance
The high and low limit compensators regulate the flow of hydraulic fluid to the system. The
compensators can become blocked with debris resulting in loss of pump control.
Figure 6-4: Hydraulic Compensator Components
Severe injury can result if the machine is not properly locked out. Observe
electrical Lockout/Tagout procedures before performing maintenance on the
system components.
Ensure all pressure is relieved or blocked from the hydraulic and high pressure
circuits before performing maintenance.
1. Remove the hydraulic hose from the low limit compensator.
2. Remove the four socket screws that attach the compensators to the pump.
3. Remove the compensators and then remove the three plugs and o-rings on the back of the
housing.
SPOOL
SPRING CUP
SPRINGS
SPRING
COLLAR
PLUG NUT
SEALING
CAP
To Next Page
Loading...
Need help?
General
