Drive Pump (Drive Relief Valves); Disassembly & Adjustment - Terex ASV SR70 Service & Repair Manual

16-39
Ring Groove
16-40
6. Once the snap rings and retainers are removed,
slide the piston assemblies out one at a time and
inspect them for damage. (fig. 16-39, 16-40)
Note: While inspecting the piston assemblies, pay
close attention to the piston ring. Look for any signs of
damage or cracking. (fig. 16-40)
16-41
7. Inspect the rollers and sleeves as well to make
sure there are no scratches or other damage that
may affect operation.
Assembly
1. Replace worn or damaged components, thorough-
ly clean all parts, then reassemble the motor by
reversing the disassembly procedure.
Drive Pump
Disassembly & Adjustment
Required Tools
Allen Wrench/Socket
Combination/Socket wrench
1. With machine off and cool and with hydraulic actu-
ators relaxed, remove the drive pump from the
machine by following the procedure in section 11.
Ring
16-42
16-43
2. Remove the drive pressure relief valves as shown
in fig. 16-42 and 16-43.
16-44
3. If adjustment is needed (see drive pressure check
procedure in section 17), loosen the allen type set
screw on the valve.
16-9
https://tractormanualz.com/
Rubber Track Loader
16. Hydraulic Component Service
(Drive Relief Valves)