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Axial Cam Drive Components
Referring to Figure 4.12, carefully inspect axial cam bearing
assemblies for wear, damage, and freedom of rotation.
Replace any damaged or defective bearing assembly.
Inspect the axial cam idler shaft. Replace if worn, bent, or
damaged.
Inspect the thrust washers. Replace if damaged.
Inspect the axial cam/gear assembly. Replace if worn
excessively or damaged.
Inspect the motor assembly, particularly the axial cam
housing. Ensure that the axial cam idler shaft socket is true
and not worn or cracked. Ensure that the fastening bosses
are not cracked or chipped. Inspect the housing for the
absence of cracks, chips, evidence of oil leaks, or other
damage.
Inspect the motor drive gear for evidence of wear or
damage.
Inspect the motor wires for evidence of corrosion, fraying
or damaged connectors, wires, or other defects.
Replace the motor assembly as a unit if any defects are
found.
Section 4 • Small Frame Electric Pump
Portable Pressure Washer Familiarization and Troubleshooting Guide
Item
Name
1
Axial cam idler shaft
2
Bearing washer
3
Axial cam/gear assembly
4
Needle thrust bearing
5
Motor
6
Bearing washer
7
Bearing washer
8
Needle thrust bearing
Figure 4.12 — Axial Cam Components
