Replacing The Transducer; Servicing The Clutch Assembly - SprayTECH GPX 85 Manual Del Propietário

note: If any of the gears are worn and require
replacement, check the grease in the gear
housing for metal particles or shavings. Remove
the contaminated grease. Replace the grease
that has been removed with fresh Lubriplate GR-
132 grease.
16. Slide the slider assembly up and out of the slider bushing
in the front of the pump housing.
17. Check the parts for wear.
a. If the slider bushing is scored or out of round the pump
housing should be replaced.
b. If the slider assembly is scored or the connection between
the connecting rod and slider assembly exhibits movement
other than pivoting movement, the slider assembly should
be replaced. The slider assembly also should be replaced
if the connecting rod bearing shows signs of wear.
c. Any parts that will be reused should be cleaned
thoroughly, including the connecting rod. Also, clean the
crankshaft pin that the connecting rod bearing rides on.
18. Coat the output gear assembly and each side of its thrust
washers with fresh Lubriplate GR-132 grease. Place the
thrust washers on their proper shaft of the output gear
assembly.
19. Lubricate the output gear assembly with fresh Lubriplate
GR-132 grease. Insert the gear assembly into its bore in
the gear housing, gear end first. The teeth on the gear will
mate with the teeth on the drive shaft pinion.
20. Generously coat all surfaces of the cylindrical crankshaft
assembly thrust washer with fresh Lubriplate GR-132
grease.
21. Slip the flat end of the cylindrical thrust washer behind the
gear on the output gear assembly, lining its bore up with
the gear housing bearing bore for the crankshaft assembly.
22. Lubricate the crankshaft assembly gear with fresh
Lubriplate GR-132 grease. Slide the gear side shaft of the
crankshaft through the cylindrical thrust washer and into
its bore within the gear housing.
23. Position the pin on the end of the crankshaft towards
the bottom of the gear housing (the bottom dead center
position).
24. Lubricate both faces of the large crankshaft assembly
thrust washer with fresh Lubriplate GR-132 grease. Place
the thrust washer onto the crankshaft against the gear.
25. Place the housing gasket over the gear housing dowel
pins.
26. Lubricate the outside of the slider assembly and the
inside of the slider bushing with oil. Fill the slider cup with
Lubriplate 1242 grease (the slider cup is the area on the
slider assembly where the connecting rod and slider join
and pivot).
27. Insert the slider assembly into the slider bushing.
28. Carefully place the pump housing assembly in front of the
gear housing assembly, lining up the gear housing dowel
pins with their corresponding holes in the pump housing.
Slide the pump housing onto the gear housing until there
is no gap between the housings and gasket.
note: While sliding the pump housing into place,
the crankshaft pin will begin to protrude from
the bearing in the center of the pump housing.
Position the slider assembly so that as the
crankshaft pin protrudes from the main bearing,
it engages the connecting rod bearing.
IMPoRtant: Do not force the pump housing and gear
housing together.
29. Locate the four socket screws and lock washers that
secure the pump housing to the gear housing.
30. Using a 1/4" hex wrench, snug and tighten the socket
screws in a crossing pattern. Torque to 200–230 in./lbs.
31. Slide the top of the piston rod into the T-slot on the slider
assembly.
English
Uncontrolled Copy
32. Position the pump block underneath the gear box housing
and push up until it rests against the gear box housing.
33. Insert the two socket screws that secure the fluid section
to the pump housing and alternately snug, tighten, and
torque the screws to 400-440 in./lbs.
34. Position the front cover over the pump housing. Secure
the front cover using the four front cover screws.

Replacing the transducer

1. Loosen and remove the four front cover screws. Remove
the front cover.
2. Stop the sprayer at the bottom of its stroke so that the
piston is at its lowest position.
3. Perform the Pressure Relief Procedure.
Before proceeding, follow the Pressure Relief
Procedure outlined previously in this manual.
additionally, follow all other warnings to reduce the
risk of an injection injury, injury from moving parts
or electric shock.
4. Tilt the sprayer back for easy access to the fluid section.
5. Using a 3/8" hex wrench, loosen and remove the two
socket screws.
6. Pull the fluid section down approximately 1/2" from the
housing to clear the transducer.
7. Slide the fluid section and piston rod forward until the
piston rod is out of the T-slot on the connecting rod.
8. Using a wrench, remove the transducer assembly from the
fluid section.
9. Thread the new transducer assembly from the fluid
section. Tighten securely with a wrench.
10. Reassemble the pump by reversing steps 1-8.
IMPoRtant: Make sure the transducer is aligned properly
with the hole in the fluid section during reassembly.
Improper alignment may cause damage to the transducer
o-ring.
Pump
Housing
Slider
Assembly
Front
Cover
Screw
Front
Cover

Servicing the clutch assembly

note: When replacing the clutch armature, the clutch
rotor must be replaced also. this will allow for
even wear and maximum life on clutch parts.
Removing/Replacing the clutch armature
assembly
1. Perform the Pressure Relief Procedure.
2. Locate the wire that exits the rear of the pressure control
housing and connects to the wire harness on the engine.
Disconnect this wire from its connector at the engine wire
harness.
3. Using a 12 point, 5/16" wrench, remove the four screws
and lock washers that secure the clutch housing to the
gear housing.
10
Transducer
Assembly
Fluid
Section
Housing
Socket
Screw
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