3100 & LPZ Series Bottom Mount Drive Package for Light & Standard Load 60 Hz Gearmotors SOMM
851-436 Rev. B
8
Dorner Mfg. Corp.
Required Tools
D
Hex key wrenches:
2 mm, 2.5 mm, 3 mm, 5 mm
D
Adjustable wrench (for hexagon head screws)
D
Straight edge
D
Torque wrench
Timing Belt Tensioning
Ç
Ç
Exposed moving parts can
cause severe injury.
LOCK OUT POWER before
removing guards or
performing maintenance.
WARNING
1
.
Remove four (4) screws (L of Figure 11) and remove
cover (K).
2
.
Loosen tensioner (V of Figure 12).
Figure 12
V
3
.
Depending on conveyor belt travel (direction 1 or 2),
locate timing belt tensioner (V of Figure 10) as
shown. Tension timing belt to obtain 1/8” (3 mm)
deflection for 6 lb (3 Kg) of force at timing belt
mid-point (W). Tighten tensioner screw to 110 in-lb
(12 Nm).
4
.
Install cover (K of Figure 11) with four (4) screws
(L). Tighten screws to 35 in-lb (4 Nm).
Timing Belt Replacement
Ç
Exposed moving parts can
cause severe injury.
LOCK OUT POWER before
removing guards or
performing maintenance.
WARNING
1
.
Remove four (4) screws (L of Figure 11) and remove
cover (K).
2
.
Loosen tensioner (V of Figure 12).
3
.
Remove timing belt (P of Figure 13).
NOTE:
If timing belt does not slide over pulley
flange, loosen driven pulley taper-lock screws (U of
Figure 13) and remove pulley with belt (P). For
re-installation, see steps 6 and 7 on beginning on
page 6.
Figure 13
P
U
4
.
Install new timing belt.
5
.
Depending on conveyor belt travel (direction 1 or 2),
locate timing belt tensioner (V of Figure 10) as
shown. Tension timing belt to obtain 1/8” (3 mm)
deflection for 6 lb (3 Kg) of force at timing belt
mid-point (W). Tighten tensioner screw to 110 in-lb
(12 Nm).
6
.
Install cover (K of Figure 11) with four (4) screws
(L). Tighten screws to 35 in-lb (4 Nm).
Preventive Maintenance and Adjustment
