PISTON

LIFTTRUCKMODEL LIFT TRUCK MODEL PISTON ROD NUT RETAINER

N•m lbf ft N•m lbf ft

S2.00-3.00XL (S40-60XL)

S25-35XM, S40XMS 320 to 400 236 to 295 400 to 500 295 to 370

163 to 190 120 to 140 163 to 176 120 to 130

S3.00-5.50E (S60-120E)

S3.50-5.50XL (S70-120XL)

S5.50-7.00A (S125-150A)

S6.00-7.00XL (S135-155XL) 407 to 440 300 to 325 576 to 644 425 to 475

400 to 440 295 to 325 400 to 500 295 to 370

542 to 610 400 to 450 176 to 244 130 to 180

407 to 440 300 to 325 542 to 610 400 to 450

N30/40/45XMR, N25/30XMDR, N50XMA N30/40/45XMR2, N25/30XMDR2, N50XMA2 163 to 190 120 to 140 163 to 176 120 to 130

TABLE 2 – TORQUE SPECIFICATION FOR THE TILT CYLINDERS (CONTINUED)

PROBLEM

Tilt cylinder movement is slow or not smooth.

The tilt cylinders permit the mast to move when the tilt control lever is in the neutral position.

TROUBLESHOOTING

POSSIBLE CAUSE

Air is in the hydraulic system. The hydraulic pump is worn or damaged. Restriction in the hydraulic lines. Seals in tilt cylinder are damaged.

Tilt cylinders have internal damage. Load is greater than capacity. Pressure relief valve(s) is not adjusted correctly or is damaged. Large leaks between spool and bore. Spool is not fully extended or retracted. Tilt control spool is damaged.

There are leaks in the hydraulic lines. Seals in tilt cylinder are damaged.

Tilt cylinders have internal damage. Tilt control spool is damaged.

PROCEDURE OR ACTION

Remove air from hydraulic system. Repair or replace hydraulic pump. Repair hydraulic lines. Replace seals and inspect cylinder bore for damage. Repair or replace cylinder. Reduce load. Repair or adjust relief valve(s).

Replace valve section. Adjust linkage to spool. Repair control valve.

Tighten fittings or repair leaks. Replace seals and inspect cylinder bore for damage. Repair or replace cylinder. Repair control valve.