Installing A New Drive V-Belt - Thermo Scientific MaxQ SHKE416HP Operating And Maintenance Manual

Adjusting Drive V-Belt
Tension (continued)
Installing a New
Drive V-Belt
Thermo Scientific
7. Tighten the remaining drive motor pivot screw. The v-belt is now under
proper operating tension.
Figure 4-1. Underside of shaker cabinet with bottom cover removed
Caution Tighten all screws. Do not allow the shaker to operate against the
spring tension.
s
Refer to "Adjusting Drive V-Belt Tension" to loosen the three 7/16" drive
motor retaining screws.
Caution The drive motor is under spring tension and may suddenly move
when the pivot screw is loosened. When the new belt is installed, tighten
all screws. Do not allow the shaker to operate against the spring tension.
1. Place the new v-belt around the bottom of both the motor and the
large drive wheel.
2. Force the drive motor inward toward the drive wheel and rotate the
drive wheel counterclockwise, forcing the v-belt into the wheel grove.
It may be necessary to use a lever (large screwdriver or pry bar) to
move the drive motor inward against the spring tension. The large
rubber foot can be used to pry against. Once the belt is properly seated
in the motor and drive wheel, the internal springs apply proper
tension.
3. Tighten the two screws in the slotted holes, then tighten the drive
motor pivot screw.
4. Replace the bottom cover and return the shaker to service.
Section 4
Service
s
Orbital Shakers 4-3