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building circuit fuse blown.
Overload switch has opened.
Electric motor stops while
Power cord unplugged, or
spraying.
building circuit fuse blown.
Overload breaker.has opened.
Extension cord
Tip plugged.
Electric motor runs,
but
Displacement pump frozen or
no output.
gear train damage.
SOLUTION
Check, replace.
Unplug power cord'. decrease pressure
Check, replace.
~ ~~~
Unplug powei cord'. relieve pressure-allow
to cool.
DonZ use more than
loOftoi
8
ga extension cord.
Remove and clean
Thaw,
'This
unit
has an overload breaker built into the switch assembly. If
it
opens, unplug power cord and let sprayer
cool for
30
to
60
minutes. Also, try to correct the cause of overheating. Always use the lowest pressure setting
needed.
NOTE:
A
M11
and
M30
metric wrenches are
required for servicing pump.
PUMP
Photo
1
and
2.
Valves
1)
Remove the hex plug using an
M30
wrench.
2)
Examine O-ring under plug and replace
if
evidence of cuts or distortion.
3)
Remove valve assembly including, retainer.
spring, valve and valve seat from valve cavity.
MOTE:
Valve assembly may come apart during
removal.
41
Replace valve parts
with
service kit
(801-041)
including retainer, spring, valve, valve seat,
o-
ring and back-up-ring.
5)
Replace valve cover and torque to
75
ft-lb
(100
Nm).
Photo
3.
Pumping
Section
2)
Separate the manifold from the crankcase.
1)
Remove the four
{4)
hex nuts from the manifold.
NOTE:
It may be necessary to tap manifold
lightly with mallet to loosen.
I
1
Keep manifold properlyaligned with ceramic
plungers when removing to avoid damage to
either Dlunclers or seals.
~ ~~
3)
Carefully examine each plunger for any scoring
~~ ~
and replace if necessary.
6
801-457
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