Doosan Compressor 10/370

Warning: This procedure requires trained personnel with PPE!

Trailer secured on adequate capacity jack stands

Adjusting hole cover removed from the adjusting slot on the bottom of the brake backing plate

Brake shoes expanded until the pressure of the linings against the drum makes the wheel very difficult to turn

Starwheel rotated in the opposite direction until the wheel turns freely with a slight lining drag

Adjusting hole cover replaced and wheel lowered to the ground

Sign off on the brake adjustment

Warning: This procedure requires trained personnel with PPE!

Brake shoes visually checked for proper operation and deterioration

Procedure for replacing brake cables and adjusting brake shoes

Parking brakes adjusted correctly after all brake shoes have been adjusted

Each brake cable has approximately the same tension

Brakes fully applied when lever is in “ON” position

Grease applied to cable strands from conduit six inches toward lever

Note: New cables will stretch and therefore should be readjusted after the first week of use.

Compressor Oil Filter Element replaced?

Wheels (bearings, seals, etc) checked?

Fuel Tank (filled at end of day) drained?

Sign off on the compressor maintenance

Every month or 500 miles, tighten the wheel lug nuts to 85 - 95 lbs.-ft. Every six months the wheel bearings, grease seals and axle spindles should be inspected for damage (corrosion, etc.) or excessive wear. Replace any damaged or worn parts.

Repack wheel bearings. Use a wheel bearing grease conforming to specification MIL--G--10924 and suitable for all ambient temperatures. Grease can be replaced in a wheel bearing using a special fixture or by hand as follows.

Place a spoonful of grease in the palm of one hand and take the bearing in the other hand. Push a segment of the wider end of the bearing down into the outer edge of the grease pile closest to the thumb.

Keep lifting and pushing the bearing down into the edge of the grease pile until grease oozes out both from the top and from between the rollers. Then rotate the bearing to repeat this operation on the next segment.

Keep doing this until you have the entire bearing completely filled with grease. Before installing bearing, place a light coat of grease on the bearing cups which are pressed in the hub.

NOTICE: Excessive grease in the hub or grease cap serves no purpose due to the fact that there is no way to force the grease into the bearing. The manufacturer’s standard procedure is to thoroughly pack the inner and outer bearing with grease and then to apply only a very small amount of grease into the grease cap.

If bearing adjustment is required or the hub has been removed for any reason, the following procedure must be followed to ensure a correct bearing adjustment of 0.001 to 0.012 free play.

1. While rotating hub slowly to seat the bearings, tighten spindle nut to approximately 15 lbs.-ft. Grasp the tire at the top and bottom and rock, in and out. There should be no evidence of looseness (free play) at the bearing.

2. Loosen nut to remove preload torque. Do not rotate hub.

AIR FILTERS RESTRICTED lamp functional

Rubber valve on air cleaner housing not clogged

Turn off the main power switch before proceeding

Loosen outer wing nut and remove with outer element

Inspect red window on special inner wing nut to find small dot

Inspect air cleaner housing for any leaks

Wipe inside of air cleaner housing clean

Inspect the primary element for any holes or tears

If a new air filter element is to be used, check it for shipping damage