BL-CB33-0115 - 03-01-2018 8-1
SECTION 8
ELEVATION SYSTEM SERVICING
8-1. GENERAL.
The elevation system includes the outer mast, inner
mast, lift linkage, lift chains, lift cylinder and ram head.
8-2. LIFT CHAIN LENGTH ADJUSTMENT.
8-2.1. Telescopic
1. Fully lower the lift carriage.
2. Turn off the key switch and disconnect the batter-
ies.
WARNING: Before attempting any adjustment, make
certain power is disconnected.
3. Loosen upper jam nuts, located above the mounts
on outer mast, to allow for adjustment of middle
jam nuts.
4. Break the lower jam nuts, located below the
mounts on outer mast free from the middle jam
nuts.
5. Take up slack in both lift chains with middle jam
nut. Strive for equal tension on both chains.
6. Align adjusting bolts so each clevis pin is parallel
to the mast.
CAUTION: At least 3 full threads must be present
below lower nuts after adjustment.
7. Tighten jam nuts securely while maintaining align-
ment of clevis pins.
8. Reconnect the batteries and turn on the key-
switch.
9. Test chain by operating carriage. If slack is still
apparent, repeat above procedure.
Figure 8-1 Chain Assembly
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