G0453W/ZW–G0454W/ZW (Mfd. Since 05/16)
-41-
4. If V-belts need to be replaced, raise motor to
release belt tension (see next step for instruc-
tions), roll them off pulleys, then replace with
a matched set of 3.
5. To adjust V-belt tension, loosen both top
motor mount hex nuts (see
Figure 59 on
Page 40), then adjust bottom hex nuts to
raise or lower motor.
Note: V-belts are correctly tensioned when
there is approximately
3
⁄
4
" deflection when
moderate pressure is applied to them midway
between pulleys, as illustrated in
Figure 60.
Cutterhead
Pulley
Approximately
3
⁄
4
" Deflection
Motor
Pulley
Figure 60. Belt deflection when V-belts are
correctly tensioned.
6. After V-belts are correctly tensioned, tighten
top motor mount hex nuts, then re-install
cabinet cover and belt cover.
Tensioning Table
Height Chain
The table height chain transfers movement from
the elevation handwheel to the columns that con-
trol 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
Qty
Phillips Screwdriver #2 ...................................... 1
Hex Wrench 6mm .............................................. 1
To adjust table height chain tension:
1. DISCONNECT MACHINE FROM POWER!
2. Remove front and rear cabinet covers to
access table height to chain (see
Figure 61).
3. Loosen cap screws, then push idler sprocket
against chain with moderate pressure. While
maintaining pressure on idler sprocket, re-
tighten cap screws (see
Figure 61).
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.
4. Clean and lubricate chain and sprockets
(refer to
Table Height Chain & Sprockets
on
Page 35 for detailed instructions), then
re-install front and rear cabinet covers.
Figure 61. Table height chain adjustment
(shown without stand for purpose of illustration).
Idler
Sprocket
Cap Screws
Содержание G0453W
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