Spider CT Repair
wc_tx000553gb.fm 90
7.8 Rebuilding the Lift Ring Assembly
See Graphic: wc_gr003358
Inspect the lift ring assembly for wear or damage. Replace any
damaged or worm component.
This procedure requires an Arbor or similar press.
Disassembly:
7.8.1 Remove the retaining ring (88).
7.8.2 Press the bearing holder (10) from the blade lift ring (9).
7.8.3 Press the ball bearing (28) from the bearing holder.
7.8.4 Press the bearing sleeve (27) from the blade lift ring.
7.8.5 If you are replacing the lifting bolts (59) and/or the tube (11), to assist
in their removal, heat the lifting bolt to breakdown the thread locking
compound that secures it to the bearing holder (9).
Assembly:
7.8.6 Lubricate the bearing sleeve (27) with a thin film of grease and press
it into the blade lift ring (9).
7.8.7 Lubricate the ball bearing (28) with a thin film of grease and press it into
the bearing holder (10).
7.8.8 If the lifting bolts (59) and/or the tube (11) were removed from the
bearing holder, apply Loctite 271 or equivalent to the lifting bolts. Then,
slide the tube over the lifting bolt, and attach the lifting bolt to the blade
lift ring. Tighten the lifting bolt until the tube does not rotate, then back
off the lifting bolt just until the tube can rotate. Do not use the trowel
until the Loctite 271 has fully cured; approximately 12 hours.
7.8.9 Position the bearing holder over the blade lift ring and secure them
together with the retaining ring (88).
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