Exploded View

Portable Pressure Washer Familiarization and Troubleshooting Guide Section 5 • Small Frame Gas Pump

Exploded View

Figure 5.2 — Small Frame Gas Pump (exploded view) A typical small frame gas pump is shown in exploded view in FIgure 5.2.

Torque Chart

Item Torque 23 15-17 ft-lbs 30 Brass: 15-18 ft-lbs Plastic: 7-10 ft-lbs 31 15-18 ft-lbs 32 9-12 in-lbs 33 12-15 ft-lbs 36 20-30 in-lbs 40 9-12 ft-lbs 42 9-12 ft-lbs 43 15-18 ft-lbs

Portable Pressure Washer Familiarization and Troubleshooting Guide Section 5 • Small Frame Gas Pump

Exploded View Parts List

Item Qty. Description

1 3 Rubber grommet spacer sleeve 2 1 Cage needle bearing assembly 3 1 Bearing washer 4 1 Bearing washer 5 3 Oil piston seal 6 3 Piston return spring 7 3 U-cup seal 8 1 Axial cam w/insert 9 1 Engine adapter 10 1 Piston and unloader housing 11 3 Piston spring retainer 12 3 Pilot spacer 13 3 Piston 14 1 Pump head 15 1 Radial ball bearing 16 6 Rubber bushing 17 1 Piston and unloader housing O-Ring seal 18 1 High pressure transfer O-Ring 20 6 Check valve assembly 21 3 Outlet check valve cap O-Ring 23 3 Outlet check valve cap 24 1 Unloader seat 25 1 Unloader seat O-Ring Item Qty. Description

26 1 Unloader piston 27 2 Unloader split-ring seal 28 1 Unloader spring 29 1 Unloader cap O-Ring 30 1 Unloader cap 31 1 Pipe plug (if item 43 not equipped) w/sealant 32 1 Chemical injection hose barb 33 1 Plug, w/sealant 34 1 Chemical injection ball 35 1 Chemical injection spring 36 1 Chemical injection venturi 37 6 Low pressure transfer O-Ring 39 7 Lock washer 40 4 Socket head cap screw M6-1.0 x 35 42 3 Socket head cap screw M6-1.0 x 25 43 1 Thermal relief valve (if equipped) w/sealant 45 1 Venturi O-Ring