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10 ► SD67 User Manual
OPERATION
PRE-OPERATION PROCEDURES
PREPARATION FOR INITIAL USE
Each unit as shipped has no special unpacking or as-
sembly requirements prior to usage. Inspection to as-
sure the unit was not damaged in shipping and does not
contain packing debris is all that is required.
CHECK HYDRAULIC POWER SOURCE
1. Using a calibrated owmeter and pressure gauge,
check that the hydraulic power source develops a
ow of 7–10 gpm/26–38 lpm at 2000 psi/105–140
bar.
2. Make certain the hydraulic power source is equipped
with a relief valve set to open at 2100–2250 psi/145–
155 bar minimum.
3. Check that the hydraulic circuit matches the tool for
open-center (OC) operation.
CHECK TOOL
1. Make sure all tool accessories are correctly in-
stalled. Failure to install tool accessories prop erly
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 fasten-
ers 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
before making connections.
2. Connect the hoses from the hydraulic power source
to the hose couplers on the spike driver. It is a good
practice to connect the return hose rst and discon-
nect it last to minimize or avoid trapped pressure
within the spike driver.
3. Observe ow indicators stamped on hose couplers
to be sure that oil will ow in the proper direction.
The female 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 driver foot rmly on the spike to be
driven.
4. Squeeze the trigger to start the spike driver. Ade-
quate down pressure is very important. When the
spike fully sets in the tie, release the trigger.
NOTE:
Partially depressing the trigger allows the tool to
operate at a slow speed, making it easy to start the
spike in the tie.
COLD WEATHER OPERATION
If the spike driver is to be used during cold weather, pre-
heat the hydraulic uid at low engine speed. When us-
ing the normally recommended uids, uid temperature
should be at or above 50 °F/10 °C (400 ssu/82 centi-
stokes) before use.