ASV PT-70, Service Manual

Page: 118 / 146

Lift Arm Control Valve
Disassembly
1. With machine off and cool and with hydraulic actu-
ators relaxed, remove the lift arm control valve
according to the procedure on page 10-4.
2. Place the valve on a bench in a clean work area.
3. Remove the nuts holding the valve stack together.
(figure 16-13, 16-14)
4. Remove each valve section and inspect the seals
for damage, replace if necessary. (figure 16-15)
5. Remove the inlet port assemblies and inspect the
seals for damage, replace if necessary.
(figure 16-16, 16-17)
6. Once the inlet port covers have been removed
from both sides of a spool, the spool may be
removed. (fig. 16-18)
16-4
Rubber Track Loader
16. Hydraulic Component Service
Required Tools
Socket Wrench
Combination Wrench
Screwdriver (blade type)
Low Profile Needle Nose Pliers
16-13
16-15
O-ring
16-16
O-ring
16-17
16-14
16-18