Gradall 534B (9020-7317) Service Manual User Manual
Page 197
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Figure 200
Position new gasket and detent springs on converter housing.
Install control cover and cover to housing capscrews and
washers.
If the turbine or turbine hub was replaced or dis-
assembled, this procedure must be used for reassembly.
TURBINE HUB ASSEMBLY WITH BACKING
RING AND SPECIAL SELF LOCKING SCREWS
1. Clean hub mounting surface and tapped holes with
solvent. Dry thoroughly being certain tapped holes are dry and
clean.
2. Install backing ring and special screws to approximately .06
[1,5] of seated position. With a calibrated torque wrench,
tighten screws 37 to 41 lbs. ft. torque [50,2 - 55,6 N.m]. NOTE:
Assembly of turbine hub must be completed within a fifteen
minute period from start of screw installation. The screws are
prepared with a coating which begins to harden after installa-
tion in the hub holes. If not tightened to proper torque within the
fifteen minute period, insufficient screw clamping tension will
result. The special screw is to be used for one installation only. If
the screw is removed for any reason it must be replaced. The
compound left in the hub holes must be removed with the pro-
per tap and cleaned with solvent. Dry hole thoroughly and use a
new screw for reinstallation.
Figure A
Figure 201
Tighten capscrews 23 to 25 ft. lbs. torque [31,2 - 38.8 N.m].
Figure C
Figure B