Blue Giant BGN-40, Руководство пользователя

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8-2.2. TRIMAST Free Lift Chain
1. Fully lower the lift carriage.
2. Turn off the key switch (1, Figure 12-24 ) and dis-
connect the batteries.
WARNING: Before attempting any adjustment, make
certain power is disconnected.
3. Loosen jam nuts (2, Figure 8-1 ), located the
above the mounts of cylinder (29, Figure 8-3 ), to
allow for adjustment of middle jam nut.
4. Break the lower jam nuts (2, Figure 8-1 ), located
below the mounts of cylinder (29, Figure 8-3 ), free
from the middle jam nuts (2).
5. Take up slack in both lift chains with middle jam
nut (2,
Figure 8-1 ). Strive for equal tension on
both chains.
6. Align anchors (1) so each clevis pin (4) is parallel
to inner mast (20,
Figure 8-3 ).
CAUTION: At least 3 full threads must be present
below lower nut (2,
Figure 8-1 ) after
adjustment.
7. Tighten jam nuts securely while maintaining align-
ment of clevis pins (4).
8. Reconnect the batteries and turn on the keyswitch
(1,
Figure 12-24 ).
9. Test chain by operating carriage. If slack is still
apparent, repeat above procedure.
8-2.3. TRIMAST Secondary Lift Chain
1. Fully lower the lift carriage.
2. Turn off the key switch (1, Figure 12-24 ) and dis-
connect the batteries.
WARNING: Before attempting any adjustment, make
certain power is disconnected.
3. Loosen jam nuts (2, Figure 8-1 ), the mount of
outer mast (1, Figure 8-3 ), to allow for adjustment
of middle jam nut.
4. Break the lower jam nuts (2, Figure 8-1 ), located
below the mount of outer mast (1, Figure 8-3 ),
free from the middle jam nuts.
5. Take up slack in both lift chains with middle jam
nut (2,
Figure 8-1 ). Strive for equal tension on
both chains.
6. Align anchors (1) so each clevis pin (4) is parallel
to the outer mast (1,
Figure 8-3 ).
CAUTION: At least 3 full threads must be present
below lower nut (2,
Figure 8-1 ) after
adjustment.
7. Tighten jam nuts securely while maintaining align-
ment of clevis pins (4).
8. Reconnect the batteries and turn on the keyswitch
(1,
Figure 12-24 ).
9. Test chain by operating carriage. If slack is still
apparent, repeat above procedure.
8-3. LIFT CHAIN WEAR INSPECTION.
Both lift chains should be replaced when either chain
is worn enough to increase it’s length by 3% or more.
To make this determination proceed as follows.
Using a section of chain that sees the most frequent
operation over the chain sheaves, isolate a vertical
portion under tension from the weight of carriage and
forks.
Measure the distance between pin centers on 20 verti-
cal links. If the section measures 12.88” or more, the
chain should be replaced.
New chain anchor pins should be installed when
chains are replaced. Never replace a partial section of
chain and never repair chain. Refer to paragraph
8-4.
when installing new chain.
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