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10 ► SPL31 User Manual
OPERATION
CHECK HYDRAULIC POWER
SOURCE
1. Using a calibrated owmeter and pressure gauge,
check that the hydraulic power source develops a ow of
5-10.5 gpm/15-40 lpm at 2000 psi/140 bar.
2. Make certain the hydraulic power source is equipped
with a relief valve set to a max of 2500 psi/172 bar.
3. Check that the hydraulic circuit matches the tool for
opencenter (OC) operation.
CHECK TOOL
1. Make sure all tool accessories are correctly installed.
Failure to install tool accessories properly can result in
damage to the tool or personal injury.
2. There should be no signs of leaks.
3. The tool should be clean, with all ttings and fasteners
tight.
CHECK TRIGGER MECHANISM
1. Check that the trigger operates smoothly and is free to
travel between the "ON" and "OFF" positions.
CONNECT HOSES
1. Wipe all hose couplers with a clean lint-free cloth be-
fore making connections.
2. Connect the hoses from the hydraulic power source to
the hose couplers on the Spike Puller. It is a good prac-
tice to connect the return hose rst and disconnect it last
to minimize or avoid trapped pressure within the system.
3. Observe ow indicators stamped on hose couplers to
be sure that oil will ow in the proper direction. The fe-
male coupler is the inlet coupler.
NOTE:
The pressure increase in uncoupled hoses left in the
sun may result in making them difcult to connect.
When possible, connect the free ends of operating
hoses together.
OPERATING PROCEDURES
1. Observe all safety precautions.
2. Move the hydraulic circuit control valve to the ON position.
3. Place the spike puller rmly over the spike to be pulled
making sure the end of the chute is in full contact with the
spike plate.
SPL31A
1. The SPL31A has an automatic pull cycle that engages the
spike and sets the tool to the rail at a slow speed; then fully
removes the spike at a higher speed, the cycle is automatic,
and operates by fully depressing the trigger.
2. At the top of the stroke release the trigger and the spike
will automatically be ejected from the puller.
COLD WEATHER OPERATION
If the spike puller is to be used during cold weather, preheat
the hydraulic uid at low engine speed. When using the nor-
mally recommended uids, uid temperature should be at
or above 50° F/ 10° C (400 ssu/82 centistokes) before use.