
Troubleshooting Guide
Hydraulic Problems
Troubleshooting Guide
60HDdoc011304
6-12
6
PROBLEM
CAUSE
SOLUTION
Hydraulic Side Supports Go
Down Before Or At Same
Time As Log Turner
Dirt in sequence valve
Remove sequence valves and clean
thoroughly with kerosene.
NOTE:
Be
sure to reassemble the valve and
install it in its original position on the
cylinder
Retainer in sequence valve
worn
Replace sequence valve
Low air temperature causing
fluid to thicken
Allow fluid to warm up. Synthetic fluids
are available that allow for hydraulic
operation in cold weather conditions
(Mobil SHC 526)
Hydraulic Turner Goes Up
Before Or At Same Time As
Side Supports
Spring weakening in
sequence valve
Locate sequence valve at top of turner
cylinder. Turn heavy spring in about 1/4
turn
Dirt in sequence valve
Remove sequence valves and clean
thoroughly with kerosene.
NOTE:
Be
sure to reassemble the valve and
install it in its original position on the
cylinder
Retainer in sequence valve
worn
Replace sequence valve
Low air temperature causing
fluid to thicken
Allow fluid to warm up. Synthetic fluids
are available that allow for hydraulic
operation in cold weather conditions.
(Mobil SHC 526)
Springs weakening in
sequence valve.
Locate sequence valve at bottom of
turner cylinder. Turn heavy spring in
about 1/4 turn