SKF LINKOLN Pile Driver III Instrucciones Del Usuario página 10

Troubleshooting
Problem
Pump does not operate.
Erratic or accelerated operation.
Pump operates on down stroke only
(missing up stroke).
Pump operates on up stroke only
(missing down stroke).
Pump is operating but not dispensing material.
Possible cause
Restricted or inadequate air supply.
Obstructed material output.
Pump is not primed.
Insufficient material supply.
Material is too heavy for priming.
Worn or damaged piston U-cup (18) or
piston check (20 and 21).
Worn or damaged inlet check (23 and 24).
Insufficient material supply. Pump is not intaking
enough material to dispense on both strokes.
Inlet check (23 and 24) is not seating or is
damaged.
10
Solution
Check air supply pressure and air hose diameter
(see air motor manual for minimum air supply
hose diameter).
Check output line for restrictions.
Prime pump (→ Pump priming, page 8).
Refill material supply.
Decrease output with material valve. Increase
pressure to pressure primer (if in use). Check for
inlet restrictions.
Check and replace if needed.
Check and replace if needed.
Check inlet for restrictions. Decrease output with
material valve.
Check and replace if needed.
Table 4