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SPL31 User Manual ◄ 11
TROUBLESHOOTING
Problem Cause Solution
Spike puller does not cycle.
Hydraulic power source not functioning
correctly.
Check power source for proper ow
and pressure (5-10 gpm/19-34 lpm,
2500 psi/172 bar.
Coupler or hoses blocked. Remove obstruction.
Pressure and return line hoses reversed
at ports.
Be sure hoses are connected to their
proper ports.
Spike puller does not pull effectively.
Hydraulic power source not functioning
correctly.
Check power source for proper ow
and pressure (5-10 gpm/19-34 lpm,
2500 psi/172 bar.
Couplers or hose blocked. Remove restriction.
Fluid too hot (above 140 °F/60 °C).
Provide cooler to maintain proper uid
temperature.
The jaw is not sliding freely in the
chute.
Remove, clean and replace as
required.
Spike puller operates slow.
Low oil ow from power unit.
Check power source for proper ow
and oil level.
High back pressure.
Check hydraulic system for excessive
back pressure and correct as
required.
Couplers or hoses blocked. Remove obstruction.
Jaw re-tracked with tool in neutral
position
Pressure and return lines reversed at
ports.
Be sure hoses are connected to their
proper ports.
If symptoms of poor performance develop, the following chart can be used as a guide to correct the problem.
When diagnosing faults in operation of the spike puller, always check that the hydraulic power source is supplying
the correct hydraulic ow and pressure to the spike driver as listed in the table. Use a owmeter known to be ac-
curate. Check the ow with the hydraulic oil temperature at least 80 °F/27 °C.
• Always store an idle tool in a clean dry space, safe
from damage or pilferage.
• Do not exceed the rated limits or use the tool for ap-
plications beyond its design capacity.
• Always keep critical tool markings, such as labels
and warning stickers legible.
• Always replace hoses, couplings and other parts
with replacement parts recommended by Stanley
Hydraulic Tools. Supply hoses must have a mini-
mum working pressure rating of 2500 psi/175 bar.
• Permit only experienced personnel to perform tool
repair.
• Be sure to wipe all couplers clean before con necting.
Use only lint-free cloths.
• The hydraulic circuit control valve must be in the
OFF position when coupling or uncoupling the tool.
Failure to do so may result in damage to the quick
couplers and cause overheating of the hydraulic
system.
• Check fastener tightness often and before each use
daily.
NOTICE
In addition to the Safety Precautions found in this manual,
observe the following for equipment protection and care.