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Tensioning Table
Height Chain
The table height chain transfers movement from
the table height handwheel to the columns that
control table height. The chain drive can be
adjusted to remove slack if the chain stretches
over time or is loosened during table leveling
procedures.
Tools Needed
Hex Wrenches 4, 6mm ................................1 Ea.
To adjust table height chain tension:
1.
DISCONNECT MACHINE FROM POWER!
2.
Remove motor access panel to access table
height chain (see Figure 48).
3.
Loosen two chain tension cap screws (see
Figure 48), then push idler sprocket against
chain with moderate pressure to eliminate
slack in chain. While maintaining pressure on
idler sprocket, tighten cap screws.
Idler
Sprocket
Figure 48. Example of table height chain.
4.
Clean and lubricate chain and sprockets
(refer to Table Height Chain & Sprockets
on Page 32 for detailed instructions), then
install motor access panel.
NOTICE
DO NOT let chain fall off sprockets. It can
be very difficult to return chain to its proper
location on sprockets without changing
table adjustments.
-44-
Aligning Pulleys
Proper pulley alignment prevents premature V-belt
wear and unnecessary load on the motor. The
pulleys are properly aligned when they are copla-
nar (in the same plane and parallel to each other).
Tools Needed
Straightedge 3' .................................................. 1
Hex Wrenches 4, 6mm ................................1 Ea.
Wrench or Socket 13mm ................................... 1
Qty
To check/align pulleys:
1.
DISCONNECT MACHINE FROM POWER!
2.
Remove both cabinet covers and belt cover,
then use straightedge to check pulley align-
ment, as shown in Figure 49.
Figure 49. Example of checking pulley alignment.
— If pulleys are parallel and in the same
plane, no adjustment is necessary. Install
belt cover and cabinet cover.
— If pulleys are not parallel or in the same
plane, loosen four motor mount hex nuts,
then rotate motor on its mount until they
are parallel.
3.
Re-check pulleys and repeat Step 2.
4.
When you are satisfied with pulley alignment,
tighten all fasteners, and replace belt cover
and cabinet covers.
Model G0454ZX (Mfd. Since 06/23)
Qty
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