Subaru Robin PKX201 - Manual (Page 71)

Semi Trash Pumps - PKX Service
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41. Tighten and torque the four bolts to a minimum torque
of
200kg/cm.
42. Once the case is torqued down, pull the recoil starter
to check that pump and engine turn over freely. If OK,
then re-fi ll with prime water. Next check the engine oil
and start the engine. Apply vacuum pressure plate
tester per service manual and check for leaks.
43. If it becomes necessary to remove the discharge
nozzle, the following procedure is recommended.
Loosen and remove the 4 bolts that hold the nozzle
housing to the outer casing.
44. Remove the discharge nozzle and inspect the gasket
and nozzle for cracks.