12 ► SD67 User Manual
Problem Cause Solution
Spike driver does not run. Power unit not functioning. Check power unit for proper ow and
pressure (7–10 gpm I 26–38 lpm,
2000 psi I 140 bar).
Couplers or hoses blocked. Remove restriction.
Pressure and return line hoses
reversed at ports.
Be sure hoses are connected to their
proper ports.
Mechanical failure of piston or
automatic valve.
Have tool inspected and repaired by
authorized dealer.
Spike driver does not hit
effectively.
Power unit not functioning. Check power unit for proper ow and
pressure (7–10 gpm I 26–38 lpm,
2000 psi I 140 bar).
Couplers or hose blocked. Remove restriction.
Low accumulator charge (pressure
hose will pulse more than normal).
Have recharge by authorized dealer.
Fluid too hot (above 140 °F/60 °C). Provide cooler to maintain proper uid
temperature.
Ram is not sliding freely in the spike
driver foot.
Remove, clean and replace as
required.
Spike driver operates slow. Low oil ow from power unit. Check power source for proper ow.
High back pressure. Check hydraulic system for excessive
back pressure and correct as
required.
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 driver, 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
accurate. Check the ow with the hydraulic oil temperature at least 80 °F/27 °C.
TROUBLESHOOTING
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