Instructions / Assembly

PD 2A / PD 3A Operation
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4.10 Clearing Jams
Overview Large solids or accumulated sand and sediment may become lodged in the pump
housing. This debris prevents the plunger arm from making a full stroke, causing
the pump to stall or the crank to slip on the output shaft. The debris must be
cleared before resuming operation.
Prerequisites  Engine is stopped
 Machine is cool to the touch
If the pump
has stalled
Follow the procedure below to clear a jam if the pump has stalled.
1. Remove the handle (a).
2. Remove the four bolts (b) securing the pump housing (c).
3. Clean all debris and obstructions from the pump housing.
4. Re-install the four bolts and handle.
If the crank is
slipping
Follow the procedure below to re-tighten the crank if a jam has caused it to slip.
1. Loosen the hand knob screws (d) and remove the metal guard (e).
2. Remove the handle and bolts as described in the above procedure.
3. Clean all debris and obstructions from the pump housing.
4. Loosen the crank lockscrew (f). Re-torque the crank lockscrew to 95 Nm (70
ft.lbs.)
NOTICE: Do not over-torque or under-torque the lockscrew! Improper torque can
break the connecting rod or cause premature wear of internal parts.
5. Re-install the metal guard, handle, and bolts.
a
e
f
d
b
c
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