CAT CAT Forklift GP30N GP30N

Steering wheel turns clockwise and counterclockwise from the straight-ahead position

Steering Valve Inspection after disassembly

Check for sliding movement in sub-assembly condition

Check sliding surfaces for defects

If any defect is found, replace the entire unit with a new one

Sign off on the steering system maintenance

Warning: This inspection requires trained personnel with PPE!

Continuity between terminal 2 and terminal 1 for 15 seconds at room temperature when a voltage of 12 V is applied between terminal 3 and terminal 1

Continuity between terminal 2 and terminal 1 for 5 seconds when a voltage of 12 V is applied between terminal 4 and terminal 1

Replace the glow timer with a new one if it does not operate properly

Sign off on the glow timer inspection

Simplex Mast Inspection after disassembly (all models)

(1) Check each roller for wear, binding or other defects.

(2) Check each roller on rolling surface for pitting or other defects.

(3) Check the mast member and the welded joints of crossmembers, shafts and supports for cracks.

(4) Check the mast support bushings for wear or other defects.

(1) Check the main rollers and side rollers for smooth rotation. Inspect each roller for wear and cracks.

(2) Check the welded portions of the bracket for cracks.

Check valves for burrs, scratches, dents and other surface defects

Check that all moving and sliding contact parts move smoothly

Replace springs if they are broken or bent

Measure the free length of springs

Sign off on the control valve inspection

(1) With the clearance A between the lining and drum set approximately to specification, pull the cable with spring with a finger as shown. The lever should turn the adjusting screw wheel by one notch and, when the cable is released, return to the original position.

(2) If the lever fails, or is slow, to turn the adjusting screw wheel, check the position of the lever relative to the toothed wheel. The lever’s actuating tip should touch the toothed wheel at approximately 7 to 9 mm (0.28 to 0.35 in.) below the centerline of the screw. If the lever contact is out of the range, the lever will not correctly engage with the toothed wheel, therefore failing or slow to turn the wheel.

(3) If the automatic adjuster fails to operate correctly, take the following actions.

(a) Ensure that the adjusting spring is correctly hooked to the primary shoe.

(d) Replace the adjusting screw.