SECTION 1 / WATER PRESSURE SOLUTIONS
2. Remove 3 plastic valve caps.
3. Check the valve for wear, debris and pitting. Replace if necessary.
4. Grease O-rings lightly with
silicone grease and reassemble.
(figure 10)
H. Water Leaks – See Section 2 / Water Leaks
I. Pump is Cycling –
See Section 4 / Detergent Delivery Failure
F. Low-pressure Check Valve
1. Remove water inlet housing with torx TX30 bit (5 bolts). (figure 6)
2. Remove low-pressure check valve, including valve disk and spring,
with special valve pliers. (figure 7)
3. Check the valve for wear, debris and pitting.
Note: If any one low-pressure valve is damaged, all three valves
should be replaced.
4. Lightly grease O-rings with silicone grease.
5. Reassemble and reinstall.
Note: Low-pressure check valves must be ordered as a unit.
Individual check valve parts cannot be ordered separately.
G. High-pressure Check Valve
1. Remove valve plate in tapping plate with screw driver.
9
F. Low-Pressure Check Valve
G. High-Pressure Check Valve
H. Water Leaks
I. Pump Cycling
figure 7
figure 10
figure 6
O-ring
O-ring
figure 8
figure 9
Pump 785 9/28/01 3:06 PM Page 9
www.mymowerparts.com
For Karcher Pressure Washer Parts Call 606-678-9623 or 606-561-4983
