• The blade set screw is loose.
• Material has accumulated on the blade.
Air heater service procedures
Reference: For detailed air heater service procedures, see the air heater owner's manual that shipped with
your booth.
Check air heater belt tension (SpaceSaver)
WARNING
Operating drives without guards in place can result in severe injury or death. If you remove any guards,
make sure you replace them before removing the locks and restoring power.
WARNING
Before servicing, lockout/tagout the air heater, including the main electrical service and the main gas
supply.
CAUTION
Do not tighten the belts by changing the motor pulley setting, as this changes the fan speed and may
damage the motor.
NOTICE
Over-tightening results in too much tension, causing excessive belt wear and noise. Under-tightening
results in too little tension, causing slippage at start-up and uneven wear.
1.
Calculate or measure the belt span as illustrated below.
A
B
C
A: Span length
B: Force
C: Deflection
2.
Calculate the required deflection by multiplying the belt span by 1/64.
For example, if the belt span is 32 inches, the belt deflection equals 1/2 inch (32 inches x 1/64 = 1/2
inch).
Service and maintenance
Global Finishing Solutions
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239-062 rev 5