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Section 6 Adjustments
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the tumbler before servicing.
• Close gas shut-off valve to gas tumbler before servicing.
• Close steam valve to steam tumbler before servicing.
• Never start the tumbler with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the tumbler is properly grounded.
W002
WARNING
73. DRIVE BELT TENSION
NOTE: Belt tension from cylinder drive motor
pulley to step pulley can be measured to ensure
proper installation in one of the following ways:
• Burroughs Belt Tension Gauge initial reading 60-
70 pounds.
• Force to deflect belt .38 inch at midspan with
initial tensioning 6.0 pounds
• Burroughs Belt Tension Gauge reading after run
45-55 pounds.
a. Support drive guard cover and remove screws
holding guard to rear of tumbler. Refer to
Figure 11.
b. Loosen the two motor bracket pivot screws.
c. Turn the adjusting nuts clockwise until proper
tension is reached. Refer to Figure 25.
d. Retighten all nuts and screws.
Figure 28
TMB1787S
REAR
BEARING MOUNTING
SCREW
REAR
BEARING ASSEMBLY
COLLAR
FRONT
BEARING ASSEMBLY
COLLAR
FRONT
ADJUSTING
SCREW
REAR
ADJUSTING
SCREW
Summary of Contents for D55
Page 1: ...D55 SERVICE MANUAL INDUSTRIAL DRYERS PUBLICATION DATE 10 03 70276001 ...
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Page 10: ...8 70276001 Section 2 Introduction Notes ...
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