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Cross-Sectional View

Portable Pressure Washer Familiarization and Troubleshooting Guide Section 7 • Large Frame Pump

Cross-Sectional View

Figure 7.1 — Large Frame Pump (cross-sectional view) A typical large frame pump is shown in cross-sectional view in Figure 7.1.

Portable Pressure Washer Familiarization and Troubleshooting Guide Section 7 • Large Frame Pump

Sectional View Parts List

Item Qty Description

1 1 Unloader-pressure regulator assembly 2 3 Socket head cap screw, M6-1.0 x 45mm 3 3 M6 ribbed lock washer 4 1 Pump head assembly 5 1 O-ring 6 3 Piston pivot shoe 7 1 Axial cam bearing 8 1 Axial cam 9 1 Engine adapter 10 1 Engine adapter bearing 11 1 Thrust washer 12 1 Engine pilot sleeve 13 1 Retainer washer Item Qty Description

14 1 Straight engine shaft adapter 15 1 C-ring cam retainer 16 1 Engine adapter gasket 17 4 Socket head cap screw, 5/16”-24 18 6 M6 ribbed lock washer 19 6 Socket head cap screw, M6-1 x 20mm 20 6 Socket head cap screw, M8-1.25 x 0.75 21 6 M8 ribbed lock washer 22 1 Engine adapter o-ring 23 1 Tapered engine shaft adapter 24 4 O-ring 25 4 Button head cap screw, 5/16” - 24 26 1 Belleville washer 27 1 Jam nut

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