Figure 75. X-axis belt tensioner components.
Pulley
Pulley
Deflection
Figure 73. Testing belt deflection.
Figure 74. X-axis belt deflection testing location.
Model G0911–G0914 (Mfd. Since 05/21)
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The Model G0911–G0914 uses toothed synchro-
nous belts that engage with a cogged drive pulley.
After long-term use, one or more synchronous
belts may have to be adjusted. To maximize belt
life, and maintain adequate cut quality, follow
these recommended guidelines:
•
Unlike V-belts, the synchronous belts must
not be allowed to slip under any circum-
stances, or the workpiece will be ruined
due to laser coordinates straying from the
programmed path. Synchronous belt tension
only needs to keep the belt teeth engaged
with the pulley cogs under a light load.
•
Excessive belt tension will wear out delicate
pulley bearings and stretch the belt.
•
Insufficient belt tension will cause noisy direc-
tional changes due to belt slip, and reduce
resolution quality of the cut.
The following sections show proper belt tension
deflection values for each axis. See
Figure 73 for
a typical method of testing belt deflection using
moderate pressure.
Adjusting
Synchronous Belts
X-Axis Belt Adjustment
1. DISCONNECT MACHINE FROM POWER!
2. Open top loading door and center laser head
assembly over table.
3. Test for approximately 10mm of deflection on
top side of belt at its center (see
Figure 74).
— If belt deflection is approximately 10mm,
no adjustment is required.
— If belt deflection is greater than or less
than 10mm, proceed to
Step 4.
Items Needed
Qty
Caliper or Precision Ruler ................................. 1
Hex Wrenches 2.5, 3mm .............................1 Ea.
Open-End Wrench 7mm .................................... 1
Phillips Head Screwdriver #2 ............................ 1
Clean Shop Rags .............................. As Needed
4. To adjust belt tension, loosen (4) jam nuts on
belt tensioner, loosen or tighten (2) Phillips
head screws, then secure jam nuts (see
Figure 75). Repeat Step 3.
Belt Tensioner
Testing Location
Laser Head
Assembly
Synchronous Belt
Phillips Head
Screw (1 of 2)
Jam Nut
(1 of 4)
Belt Tensioner
Summary of Contents for G0911
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