Model G1033/X/Z (Mfd. Since 02/19)
-45-
Tensioning Table
Height Chain
The table height chain is located under the table.
It transfers movement from the 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.
Items Needed
Qty
Phillips Screwdriver #2 ...................................... 1
Wrench or Socket 14mm ................................... 1
To tension table height chain:
1. DISCONNECT MACHINE FROM POWER!
2. Remove motor access panel to access table
height chain (see
Figure 63).
3. Loosen both chain-tension lock bolts (see
Figure 63), then push idler sprocket against
chain with moderate pressure to eliminate
slack in chain. While maintaining pressure on
idler sprocket, re-tighten lock bolts.
Idler
Sprocket
Lock Bolts
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 33 for detailed instructions), then
re-install motor access panel.
Figure 63. Table height chain on underside of
table (stand removed for clarity).
Checking Pulley
Alignment
Proper pulley alignment prevents premature V-belt
wear and unnecessary load on the motor. The
pulleys are properly aligned when they are parallel
and in the same plane as each other.
Items Needed
Qty
Straightedge 3' .................................................. 1
Wrench or Socket 14mm, 17mm .................2 Ea.
To check/re-align pulleys:
1. DISCONNECT MACHINE FROM POWER!
2. Remove belt cover, then use straightedge
to check pulley alignment, as shown in
Figure 62.
Figure 62. Checking pulley alignment.
— If pulleys are parallel and in the same plane,
no adjustment is necessary. Re-install belt
cover.
— If pulleys are not parallel or in the same
plane, remove motor access panel, then
proceed to
Step 3.
3. Loosen (4) motor mount bolts, shift motor
until pulleys are aligned, then re-tighten bolts.
4. Re-check pulleys and repeat Step 3 as
necessary until you are satisfied with pulley
alignment, then re-tighten all fasteners, and
replace belt cover and motor access panel.
Summary of Contents for G1033X
Page 76: ......
