Malfunction
Probable Cause
Hot to Determine
Corrective Action
Page
Steps
2 Loss of Control
0 Ring between pump housing Remove control assembly from
ReplaceO Ring
3
Continued
and control assembly
pump housing and check O Ring
Insufficient oil supply
Check for plugged lines or dirty
Clean or replace as necessary
filter
Check oil level in reservoir
Add oil as necessary
Check valve malfunction
Check for sticking valves
Rework or replace as necessary
4
Charge pump malfunction
See pump overhaul sections
1 thru 3
Relief valve malfunction
See "loss of pressure" above
Control linkage malfunction
Check external linkage for loose or
Repair or replace as necessary
broken connections
Internal failure
Check internal mechanism
Actuate control lever If no
response, check for.
A Broken lever arm or pin
Replace lever arm assembly
7
Item 35, Fig. 12
B. Feed back lever broken or not
Replace valve sleeve
7
properly assembled on cam lever
pin
H. Damaged piston O-Rings
Replace O-Ring
Item 46, .Fig. 171
3 Excessive noise, cavit- Filter
Check for dirty filter
Replace filter
ation and internal damage
Inlet line
Check Inlet line for collapsed
Clean hose or replace as
wall or other restrictions
necessary
86