Servicing The Clutch Assembly - Titan 0509009 Owner's Manual

Servicing the clutch assembly

NOTE: When replacing the clutch armature, the clutch hub
and clutch rotor must be replaced also. This will
allow for even wear and maximum life on clutch parts.
Removing/Replacing the clutch hub and armature assembly
1. Perform the Pressure Relief Procedure.
2. Using a 7/8" open-end wrench, loosen and remove the
fluid hose from the fitting on the back of the fluid section.
3. Hold the transducer tube with a pliers to prevent it from rotating
and turn the transducer nut counterclockwise using a 3/4"
open-end wrench. When the nut disengages the filter housing,
carefully remove the transducer from the filter housing.
4. Locate the wire that exits the rear of the electronic
pressure control (EPC) housing and connects to the wire
harness on the engine. Disconnect this wire from its
connector at the engine wire harness.
5. Using a 1/2" wrench, remove the four hex screws and lock
washers that secure the clutch housing to the gear housing.
6. Using a 9/16" socket, remove the two hex screws that
secure the gear housing to the cart.
7. Slide the pump and gear housings away from the engine
to disengage them from the clutch housing.
Clutch Armature
Taper Lock Bushing
Gear
Housing
Lock
Washer
Pump
Housing
Clutch
Gear Housing
Housing
Hex Screw
8. Locate the clutch hub and armature assembly on the end
of the engine shaft. Note the two set screws as well as
the unused, threaded hole in the taper lock bushing at the
center of the clutch hub.
9. Using an 1/8" hex wrench, remove the two set screws
from the taper lock bushing
10. Thread one of the set screws into the unused, threaded hole
on the taper lock bushing. As the screw tightens, the bushing
will loosen. Once the bushing has loosened enough, slide
the clutch hub and armature assembly off the engine shaft.
11. Before replacing the clutch
hub and armature assembly
the proper "set back" must be
created. Using the Titan hub
set-up tool (P/N 0509925),
create a "set back" of 0.20"
between the friction surface
of the clutch armature and the
forward face of the clutch hub.
NOTE: a new clutch hub and
armature assembly will
come pre-assembled, but
the "set back" will not be
correct. The "set back"
must still be created using
the hub set-up tool.
© Titan Tool Inc. All rights reserved.
Clutch Hub
Set Screw
Clutch Housing
Hex Screw
Engine Shaft
Clutch
Armature
Clutch
Hub
Flat
Surface
0.20"
12. Line up the three holes in the taper lock bushing with the
three holes in the clutch hub and insert the bushing into
the center of the clutch hub.
13. Line up the key on the taper lock bushing with the keyway
on the engine shaft and slide the assembly onto the shaft
with the holes facing out.
14. Apply blue Loctite to the
two set screws and insert
the screws into the taper
lock bushing. Tighten the
set screws only two turns
at this time.
15. Line up the forward face
of the clutch hub with the
front face of the clutch
housing. Using an 1/8"
hex wrench, alternately
tighten the set screws
into the taper lock bushing. Torque to 65–75 in/lbs.
NOTE: To ensure the clutch hub and the clutch housing are
aligned, hold a straight edge across the face of the
clutch housing and then hold the clutch hub against
the back of the straight edge while tightening the
two set screws into the taper lock bushing.
16. Make sure the friction surface of the clutch armature is
clean and free from oil or grease.
Removing the clutch Rotor, clutch Field, and
Drive Shaft assembly
1. Follow steps 1–7 in "Removing/Replacing the Clutch Hub
and Armature Assembly."
2. Locate the clutch rotor assembly on the end of the drive
shaft assembly. Note the locations of the three socket
screws and the two empty, threaded holes on the clutch
rotor.
3. Using a 3/16" hex wrench, remove the three socket
screws and lock washers that secure the clutch rotor to
the drive shaft assembly.
4. Thread two of the socket screws into the empty, threaded
holes and tighten alternately. This will push the clutch
rotor away from the drive shaft assembly and pinion.
Electrostatic discharge (ESD) potential could cause
damage to electronic pressure control. use Titan ESD
wrist strap P/N 0507958 or equivalent when working
on electronic pressure control.
5. Using a Phillips screwdriver, remove the four screws that
secure the EPC assembly to the EPC housing. Carefully
remove the EPC assembly from the housing.
6. Locate the two clutch field wires that pass from the gear
housing into the EPC housing through a grommet in the
back of the EPC housing. Remember the wire connection
terminals on the EPC assembly (label if necessary) and
disconnect the wires. Gently move the EPC assembly
away from the housing and rest it on the work surface by
the control housing.
7. Locate the four set screws that secure the clutch field to
the gear housing. They are located on the exterior of the
gear housing at the 12, 3, 6, and 9 o'clock positions while
Set-Up
facing the clutch field end of the gear housing. Using an
Tool
1/8" hex wrench, remove the setscrews. Remember the
location of the two clutch field wires with respect to the
grommet and EPC housing.
8. Carefully slide the clutch field out of the gear housing, keeping
the field square to the gear housing so it does not bind.
9. Remove the retaining ring in front of the ball bearing within
the center bore of the gear housing.
10. Follow steps 2–6 in the "Replacing the Gears" procedure
to remove the pump housing from the gear housing.
13
Taper
Lock
Bushing
Set
Screw
Straight
Edge
Engine 0.20"
Clutch
Housing