Gear Replacement
WARNING: Before proceeding,
follow
the
Pressure
Relief Procedure
outlined
on
Page 5. Additionally,
follow
all
other
warnings
to
reduce
the
risk
of
an
injection injury,
injury
from
moving
parts
or
electric
shock.
Always
unplug
the
sprayer
before servicing!
1. Remove safety plate (#43), Figure 10.
2. Remove screws
(#306)
with a 3/16" allen wrench
3. Slide pump section from crank slide (#300}. If pump
section will not slide off, use a screwdriver to pry pump
section down, then slide off.
4Remove cover (#44).
5.
Remove (4) screws #321 with a 3/16" allen wrench.
6 Slide pump housing main assembly (#40) off motor box
housing
#31
.
7.
Inspect gears beginning with crankshaft assembly
(#37). Then, output pinion gear (#33), followed by pinion
gear (#38}.
ยท 8. Inspect pinion gear on motor armature assembly
(#139)
by
removing motor as described in motor
replacement section.
9 Re-assemble
by
reversing the above order. When
reassembling, make sure that all washers are
in
place
and that gears and bearing are properly lubricated.
10. Grease Item #37 every 1 00 hours. Fitting located
under Plate #44.
11. Grease Item #300 on Page
24
every 1 00 hours.
Fitting located on
Item #300 under Plate #44.
On/Off Switch Replacement
WARNING: Before
proceeding,
follow
the
Pressure
Relief Procedure
outlined
on
Page 5. Additionally,
follow
all
other
warnings
to
reduce
the
risk
of
an
injection
injury,
injury
from
moving
parts
or
electric
shock.
Always
l!nplug
the
sprayer
before servicing!
1. Remove Switch Cover Plate and screws (#56 & #55).
2. Disconnect the two black wires from the On/Off Switch
(#49).
3. Remove the rubber boot and plate (#47 & #48) with a
wrench.
4. Remove the
On/Off Switch (#49).
5.
Install a new Switch and reattach plate and rubber
boot. Tighten securely.
6. Reconnect the two black wires to the
new
On/Off
Switch.
7. Reinstall Switch Cover Plate and screws, with warning
label facing out.
21
Power Supply Cord
Replacement
WARNING: Before proceeding,
follow
the
Pressure
Relief Procedure outlined
on
Page
5.
Additionally,
follow
all
other
warnings
to
reduce
the
risk
of
an
injection injury,
injury
from
moving
parts
or
electric
shock.
Always
unplug
the
sprayer
before
servicing!
1. Remove Switch Cover Plate and screws (#55 & #56).
2. Disconnect the Power Supply Cord (#46) from;
a)
the
On/Off Switch (#49),
b)
the white wire connected to the
motor and,
c)
the green wire connected to the grounding
screw (#42}. Refer to the Electrical
Schematic, Figure 7.
3. Loosen the cord grip housing (#45) and remove the
power cord (#46}.
4.
Install the new cord
in
reverse order of disassembly.
5.
Install the cover and screws with warning label facing
out.
Replacement
of Motor Starter
WARNING: Before proceeding,
follow
the
Pressure
Relief Procedure
outlined
on
Page 5. Additionally,
follow
all
other
warnings
to
reduce
the
risk
of
an
injection
injury,
injury
from
moving
parts
or
electric
shock,
Always
unplug
the
sprayer
before servicing!
1. Remove Switch Cover Plate and screws (#55 & #56).
2. Disconnect wires,
a)
both white/red wires from the
pressure switch, b) the black wire from the motor and,
c)
the black wire from the On/Off Switch.
3. Remove screws (#58} and washer and nuts (#52 #53).
4. Replace Motor Starter and re-secure with screws,
washer and nuts (#58, #53 and #52). Always use heat
sink material on the back of the Motor Starter when
installing.
5. Reconnect wires according to Figure 7.
6. Reinstall switch cover and screws, with warning label
facing out.
Motor Brush Replacement
WARNING: Before proceeding,
follow
the
Pressure
Relief Procedure
outlined
on
Page 5.
Additionally,
follow
all
other
warnings
to
reduce
the
risk
of
an
injection
injury,
injury
from
moving
parts
or
electric
shock.
Always
unplug
the
sprayer
before
servicing!
1. Remove Brush Plate (#22).
2. Remover Brush Insulator (#23).
3. Remove Brush
Spring (#25). NOTE: To remove brush
spring, push spring down and in for it to release.
4.
Back-off screw. Hold Brush Wire and remove Brush.
5. Inspect Motor Brush. If damaged replace.
6.
Repeat procedure for other brush.
7.
To
install Motor Brushes, reverse steps 1 through 6,
NOTE: Never operate this unit without Brush Insulator
and Brush Plate installed.
