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30
3. Move power lever to high (forward). Gear
Shift lever in neutral.
TRANSFER DIAPHRAGM CYLINDER - PAGE
10-20
REMOVAL:
To facilitate replacement of the transfer diaphragm,
remove the diaphragm housing as an assembly as follows:
1. Loosen the transfer rod lock nut.
2. Disconnect the transfer diaphragm engaging rod from
the transfer diaphragm rod end.
NOTE: Prevent the diaphragm rod from turning,
holding the diaphragm rod end with a 1/2" end
wrench while turning the transfer diaphragm engag-
ing rod.
3. Remove the upper section of the selector valve to power
cylinder tube assembly by disconnecting the fitting at
the selector valve.
4. Grasp the transfer diaphragm housing and turn housing
counter-clockwise to disconnect the transfer diaphragm
housing from the selector valve housing
.
NOTE: A strap-spanner wrench will facilitate t he
removal of the housing. DO NOT use a pipe wrench.
DISASSEMBLY OF DIAPHRAGM CYLINDER
ASSY.
1. Use 2 three inch "C" clamps to hold the diaphragm
cylinder assembly compressed during the removal of
the 6 bolts, lock-washers and nuts which attach the
front and rear housings of the diaphragm cylinder.
2. After the 6 screws have been removed release the pres-
sure of the "C" clamp slowly to relieve the pressure of
the diaphragm spring.
3. Separate the two housings and remove the spring and
diaphragm.
NOTE: At this time recheck the diaphragm for exces-
sive hardness and small cracks in the diaphragm fab-
ric.
To Install: Reverse procedure of removal
NOTE: When assembling the diaphragm cylinder the
hole in the rear cover and the depression in the front
cover should both be at the bottom to insure proper
locating when installing.
TRANSFER DIAPHRAGM CYLINDER
INSTALLATION:
1. Use two gaskets Part No. 164973 between diaphragm
mounting bracket and diaphragm housing and install
diaphragm cylinder.
2. Use a hack-saw blade to hold the mounting nut from
turning when installing the diaphragm assembly.
NOTE: The teeth of the blade should be held against
the threads and the blade should be removed before
the diaphragm housing squeezes the blade against the
gaskets.
3. When installing the transfer diaphragm housing deter-
mine that the round hole in the diaphragm cylinder rear
cover faces down when cylinder is tightened securely.
4. Connect the transfer diaphragm engaging rod to the
diaphragm cylinder rod end and adjust as follows:
With engine not running shift transmission into high
gear, adjust length of the transfer diaphragm engaging rod
until it is just long enough to allow the transfer key to
bottom solidly in the slot of the shifter shaft hand shift
lever. Check this adjustment by starting engine and turning
HDM switch "ON". Shift transmission to neutral. Selector
key should bottom solidly in the slot in the shifter shaft
power shift lever. If it does not, recheck shift shaft hand
shift lever adjustment.
5. After adjustment has been properly made tighten the
engaging rod lock nut securely. See the "Note" following
paragraph 2 under "Removal".
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