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Portable Pressure Washer Familiarization and Troubleshooting Guide
Section 5 • Small Frame Gas Pump
Pump Head Bolts
Referring to Figure 5.21, reposition the pump head and
install the four (4) M6-1.0 x 35 cap screws.
Figure 5.21 — Head Bolt Installation
Item
Name
1
M6-1.0 x 35 cap screw
2
M6 lock washer
3
Piston & unloader housing attached to
engine adapter
Tighten the M6-1.0 cap screws to the torque value specified
in the Torque Chart, found on Figure 5.2 (Exploded View) at
the beginning of this chapter.
NOTE:
Torque the outlet check valve caps at this
time, if not done previously.
Oil Fill
As shown in Figure 5.22, set the pump on its head. Pour in
the specified amount of 80W90 oil through the port used by
the engine crankshaft.
Figure 5.22 — Oil Fill
Verify that the oil level reaches the upper lip of the piston
housing, as shown in Figure 5.23. The pump can now be
installed onto the engine.
Figure 5.23 — Oil Level
For specific recommendations for oil type and capacity,
please refer to the table given in Part 1, at the beginning of
this section.
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Table of Contents
Troubleshooting
