Oil Fill

Portable Pressure Washer Familiarization and Troubleshooting Guide Section 6 • Medium Frame Pump

Oil Fill Before filling the pump crankcase with oil, ensure that the head screws, outlet port caps, and crankcase screws are tightened to the torque value specified in the Torque Chart, found on Figure 6.2 (Exploded View) at the beginning of this chapter. Referring to Figure 6.37, insert a funnel into the Oil Fill/Breather cap threaded opening at top of the pump crankcase. Add the amount and type of oil recommended in the table in Part 2 of the Common Pump Components section, earlier in this manual.

Figure 6.37 — Pump Oil Fill Location

Item Name 1 Funnel 2 Breather cap 3 Assembled pump/crankcase

Portable Pressure Washer Familiarization and Troubleshooting Guide Section 6 • Medium Frame Pump

Part 5 - Troubleshooting

Problem Possible Cause

1. Water leakage at mating flanges. a. Head bolts improperly torqued.

b. Damaged head. c. Missing or damaged o-rings a. Torque head bolts. b. Replace head. c. Install new o-rings.

2. Water leakage from chemical injector.

a. Chemical injection fitting improperly torqued. b.Check ball missing. c. Check ball stuck. a. Torque fitting.

b. Replace check ball and spring. c. Remove, clean and replace fitting, ball and spring.

3. Water leakage between pump head and spacer plate.

4. Water leaks from high pressure out connector.

a. Head bolts improperly torqued. b. Defective head gasket. c. Damaged head. d. Missing or damaged o-rings. a. Torque head bolts. b. Install good head gasket. c. Replace head. d. Install new o-rings.

a. Connector not properly seated. b. Damaged connector. a. Seal with teflon tape and tighten properly. b. Replace bad connector.

5. Water leaking out of head bolts. a. Defective or missing head gasket. b. Head bolts improperly torqued. c. Porosity in spacer plate.

6. Water leaking out behind spacer plate.

a. Thermal bypass piston missing or defective. b. Bad or missing thermal bypass piston spring. c. Bad o-ring on thermal bypass piston. d. Low pressure water seals leaking. a. Install thermal bypass piston.

b. Install new spring.

c. Install new o-ring. d. Install new low pressure seals.

Corrective Action

a. Install new head gasket. b.Torque head bolts properly. c. Replace spacer plate.

Portable Pressure Washer Familiarization and Troubleshooting Guide Section 6 • Medium Frame Pump

Part 5 - Troubleshooting (Continued)

Problem

7. Oil leak between engine and engine adapter. a. Defective or missing engine adapter oring or gasket. b. Engine adapter cap screws not tightened properly. a. Install new o-ring or gasket.

b. Tighten to correct torque.

Possible Cause

8. Oil leak between engine adapter and pump crankcase. a. Missing or bad o-ring seal. b. Cap screws not tightened properly.

9. Oil leak between pump crankcase and spacer plate. a. Missing or bad low pressure seals. b. Missing or bad piston oil seal. c. Cracks in casting.

10. Pump does not produce pressure, exhibits erratic pressure, chatters or has a low water volume. a. Nozzle is set to low pressure mode. b. Incorrect spray nozzle is used. c. Spray nozzle is obstructed. d. Water Inlet blocked e. Inadequate water supply to pump. f. Water supply hose kinked or leaking. g. Clogged inlet hose strainer. h. Water supply too hot.

i. Worn or defective pump. j. Unloader-regulator valve set wrong. k. Obstructed nozzle oe chemical venturi.

11. Detergent does not mix with spray. a. Nozzle is in “high pressure” mode. b. Chemical suction line is not submerged. c. Chemical suction strainer or line is clogged. Corrective Action

a. Install new o-ring seal. b. Tighten to correct torque.

a. Install new seals. b. Install new oil seals. c. Replace cracked casting.

a. Reset nozzle to high pressure. b. Replace with correct nozzle. c. Clear obstruction from nozzle. d. Clear inlet. e. Provide sufficient water supply. f. Relieve kinking or repair leak. g. Clean strainer. h. Reduce inlet water temperature to below 140oF. i. Disassemble and repair pump. j. Set valve to high pressure. k. Remove, clean and replace chemical injection components.

a. Reset nozzle to “low pressure”. b. Insert line into fluid. c. Clean or replace strainer or line.