Table of Contents
Advertisement
Pump Head Bolts
1. Grasp the head/piston housing assembly and invert it
onto a flat surface.
2. Install the four (4) M6-1.0 x 35 cap screws . Tighten the
cap screws to the torque value specified in the Torque
Chart, found on Figure 4.2 (Exploded View) at the beginning
of this chapter.
Assemble Axial Cam
Refer to Figure 4.18 for this procedure:
Figure 4.18 — Axial Cam Assembly
Item
Name
1
Needle thrust bearing
2
Bearing washer
3
Axial cam/gear assembly
4
Bearing washer
5
Needle thrust bearing
6
Bearing washer
7
Axial cam idler shaft
8
Pump head/piston housing assembly
Portable Pressure Washer Familiarization and Troubleshooting Guide
1. Invert the head/piston housing assembly and place it on a
flat surface. Ensure that the pistons are fully inserted into
the piston housing.
2. Install the axial cam idler shaft (item 7) into its socket in
the piston housing (item 8).
3. Install a 36 x 60 x 6mm thrust washer (item 6) on the
idler shaft, with chamfer towards the pistons.
4. Lay a 40 x 60mm needle bearing (item 5) on the thrust
washer, either side up.
5. Lay a 40 x 60 x 1mm thrust washer (item 4) on the
needle bearing, chamfer side up.
6. Install the axial cam/gear assembly (item 3) onto the idler
shaft, gear end on top. Ensure that the axial cam engages
the bearing and thrust washers previously installed.
7. Install a 35 x 55 x 3mm thrust washer (item 2) on the
axial cam, with chamfer towards the cam.
8. Install a 35 x 52mm needle thrust bearing (item 1) on the
thrust washer (either side up).
9. Install the large o-ring into the piston housing groove.
10. Ensure that the idler shaft protrudes from the axial
cam/bearing assembly about 8mm. This will make motor
alignment easier.
Oil Fill
Pour the specified amount of 80W90 oil into the piston
housing. For specific recommendations for oil type and
capacity, please refer to the table given in Part 1, at the
beginning of this section.
Main Component Assembly
1. Use a dab of petroleum jelly to adhere the remaining 35 x
55 x 3mm thrust washer in its recess in the motor
housing, with chamfer towards the motor housing.
2. Grasp the motor assembly with both hands and invert it
over the piston housing so that the axial cam idler shaft
aligns with the mating hole in the motor housing. Gently
lower the motor and rotate the cam to ensure the gear
teeth engage the motor drive gear teeth.
3. Align the mounting screw holes on the motor housing
with the threaded holes on the piston housing.
32
Section 4 • Small Frame Electric Pump
Advertisement
Table of Contents
Troubleshooting
