A. Drain Plug
(figure 20)
1. Check drain plug. Tighten or replace if necessary.
2. Inspect drain plug seal. Replace if necessary.
3. Reassemble and reinstall the drain plug.
B. Oil Reservoir
(Figure 21)
1. If oil is spurting from oil reservoir vent cap, the oil level is too high.
Drain to specified level. (See note in Section 2.)
2. Inspect oil reservoir, seal and filter for damage.
3. Replace if necessary.
4. Check that vent nipple is cut.
5. Check O-ring under oil reservoir. If pitted or deformed, replace.
C. weep holes – Oil Seals
1. Unscrew the oil drainage plug and drain the oil into
a suitable container.
2. Remove piston housing.
(figure 22)
• Remove four pump head bolts
with an allen wrench and remove the pump head.
(See Section 2, figure 12)
• Re-install two of the pump head bolts with a 1/2” shim
composed of washers or a metal sleeve about 3/8”
in diameter into two diagonally opposing weep holes of
piston guide housing.
(figure 22)
• Remove the two piston guide retaining screws.
• Back off the housing by loosening up on the two pump
head bolts until spring tension in the piston guide housing
is relieved.
(inset figure 22)
• Alternate between nuts after every few turns
to keep housing level.
• Remove the two pump head bolts and shim when spring
tension is relieved.
14
SECTION 3 / OIL LEAK SOLUTIONS
A. Drain Plug
B. Oil Reservoir
C. weep holes / Oil Seals
figure 20
figure 22
Drain Plug
Seal
Drain Plug
figure 21
Oil Vent Cap
Oil Vent
Nipple
Piston
Housing
Retaining
Screws
O-ring
Pump 785 9/28/01 3:06 PM Page 14
www.mymowerparts.com
For Karcher Pressure Washer Parts Call 606-678-9623 or 606-561-4983