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second stage and output planet assemblies stayed in
the gearbox, remove it and set it aside with the second
stage planet assembly.
5. The output planet carrier has two tapped holes (1/2 –
13) which can be used to lift the assembly out of the
ring gear. Install 2 eyebolts into these holes and use
them to lift the output planet assembly out of the ring
gear. Because of the weight of the assembly, it may be
advisable to use a small hoist for this operation.
6. Using a long bar or blunt chisel, separate the ends of
the split ring (Item 48) and remove both halves of the
split ring from the motor support. Turn the assembly
over so the motor support is facing up. Because the
bearing cone (Item 49) will fall the length of the ring
gear in the next step, the assembly should be setting
on a wooden board or put several rags in the bottom of
the ring gear to prevent damage to the bearing.
7. Install three 7/8 – 9x6-inch long capscrews equally
spaced around the motor support (Item 85) until they
contact the ring gear (Item 45). Alternately tighten each
capscrew 1/2 to 1 turn at a time to lift the motor sup-
port out of the ring gear. When the two pieces have
been separated, you will hear the bearing cone (Item
49) drop to the bottom of the ring gear.
8. Install two 3/4–10 eyebolts in 2 of the motor mounting
holes and use them to lift the motor support/brake as-
sembly out of the ring gear.
SUBASSEMBLY SERVICE
PRIMARY RING GEAR/END COVER
1. Thoroughly clean and inspect the cover/ring gear.
Check the ring gear teeth for nicks, spalling or exces-
sive wear. Replace if wear is greater than 0.015 inch
(0.4 mm) when compared to unworn area of teeth. The
only serviceable parts in the ring gear/cover are the
two thrust washers (Items 40 and 41). Inspect them
for signs of abnormal wear or damage and replace as
required. Inspect the inside of the cover for signs of
contact with the primary sun gear and/or primary planet
carrier. If signs of contact are seen, replace both thrust
washers.
Summary of Contents for CH330
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