Troubleshooting Guide
Hydraulic Problems
Troubleshooting Guide 60HDdoc102619 6-14
6
Hydraulic Toe Boards or
Clamp "Creep" DOWN
without the valve control
handles being operated
OR do not raise or lower
at all.
Can be a result of failing to
lower completly the toe
board/log clamp before loading
the log and hitting the toe
board/log clamp by the log
being loaded (which can cause
damage to the toe board/log
clamp and the sawmill bed).
ꞏ Damaged hoses;
ꞏ Damaged cylinder seals or
cylinder;
ꞏ Damaged valve.
INITIAL CHECK
To check, disconnect the toe board hydraulic hose
from its current valve section and temporarily
connect it to another valve section. Check to see if
the hydraulics operate properly.
If hydraulics operate properly, hoses and cylinder
seals are good. Perform further valve inspection,
found below.
If down creep still
occurs, check all hoses for
possible pinholes causing leakage. Replace if
applicable. Retest. If down creep still
occurs,
replace cylinder seals or cylinder and retest.
Be sure to reconnect the hose to the proper valve
section when done.
FURTHER VALVE INSPECTION
If further inspection of the valve is required after
initial check, remove the check valve shown below.
Flush the check valve with an air hose or solvent to
remove any dirt from the valve's seat. Reinstall and
test again. Check to see if the hydraulics operate
properly.
If down creep still
occurs, replace the check valve
with a new one. Retest. If down creep still
occurs,
replace the hydraulic valve section.
Bad check valve (results in one
of the toe boards experiencing
down-creep).
Replace the hydraulic valve section.
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