GENERAL MAINTENANCE (Cont'd.)
BELTS: Drive belts must be kept tight enough to prevent slipping. If belts slip or squeak, see V-belt
maintenance in preceding section.
MOTOR LUBRICATION: Long time satisfactory operation of an electric motor depends in large measure
on proper lubrication of the bearings. Bearing grease will lose its lubricating ability overtime, not
suddenly. Refer to the motor manufacturer's instructions for the type of grease and lubrication
intervals.
PILOT VALVE: (Optional - Dual Control Units Only) The pilot valve actuates the head unloader
mechanism to provide a means of stopping or starting the compression of air by the compressor
without stopping or starting the electric motor.
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