Air Cleaner Service Procedure
The air cleaner should be inspected periodically to maintain maximum engine protection and maximum service
life. These inspections should include the following points:
Inspect the air transfer duct between the air cleaner and the engine to be sure all clamps are tight and there are
no cracks in the ducting.
Air cleaner mounting bolts and clamps must be tight to hold the air cleaner securely.
Check for dents and damage to the air cleaner which could mean a leak.
Make sure all inlet accessories are free from obstruction and securely mounted.
Check precleaner fins for plugging.
Clean element with compressed air (maximum 100 psi) or by washing in water and detergent solution. Inspect
for ruptures, holes, or damaged gaskets. Replace after six cleanings or annually, whichever occurs first.
Hydrostatic Drive Oil Filter
When tightening, center post hold housing from turning, otherwise the O-ring may stretch out of shape causing
leak- age. Tighten center post to a maximum of 20 ft-lb.
V-Belt Adjustment - Vibratory Drive
The vibrator shaft V-belt drive consists of a four V-belt band. Adjustment of the belt tension is made with the
tension bolt located in the rear right side of the frame.
To adjust belts, loosen the jamnut on the tension bolt. Wrenching the nut in tightens the belt. The belt tension
may be checked through a round hole in the side of the frame, which is located at the upper side of the belt
drum near the center between the sheaves.
Check the tension adjustment frequently on new belts until the initial stretch is out.
Vibrating Roll Bumpers
The bumpers are provided to limit the movement of roll to the front and rear. However, the roll must be free to
vibrate, therefore, the brackets should be adjusted to maintain approximately 1/8-inch clearance between the
rubber bumpers and the suspension beam.
The scrapers are the fixed type and should be adjusted to clear the roll approximately 7/8-inch when not
operating. This will allow sufficient clearance for the roll to vibrate without striking the scrapers and still keep
the roll clean.
Vibrating Shaft Assembly
Under normal operating conditions, no maintenance is required except as specified in the lubrication
instructions. The eccentric shaft has two spherical roller bearings, one on each end. The normal operating
temperature should not exceed 180 . If operating temperature ranges between 1800 and 200 due to
abnormal ambient temperatures, replace the oil with the next higher grade. To measure the oil temperature,
park the roller with the filler-drain plug near the top of the roll and remove the filler-drain plug. Insert the
sensing unit of a Stewart Warner D-361 or equivalent gauge through the filler-drain hole, and feed most of the
tube into the drum to be sure the sensing unit is submerged in oil. Leave the sensing unit in the oil until the
temperature gauge reading stabilizes. Remove the sensing unit and replace the plug.