793B Off-Highway Truck Hydraulic System Caterpillar

Illustration 1	g00122869

(1) Lubricate the threads of the twelve bolts before you tighten the twelve bolts.

(2) Rod diameter during the second stage

Outside diameter of the rod ... 222.200 ± 0.038 mm (8.7480 ± 0.0015 inch)

Inside diameter of head (8) ... 222.78 ± 0.03 mm (8.7708 ± 0.0012 inch)

Inside diameter of piston (7) ... 222.251 ± 0.025 mm (8.7500 ± 0.0010 inch)

(3) Bore diameter during the second stage

Inside diameter of the cylinder ... 279.44 ± 0.10 mm (11.0016 ± 0.0039 inch)

Outside diameter of piston (7) which includes the 2 lands ... 278.90 ± 0.03 mm (10.9803 ± 0.0012 inch)

(4) Rod diameter during the first stage

Outside diameter of the cylinder tube ... 317.450 ± 0.038 mm (12.4980 ± 0.0015 inch)

Inside diameter of head (9) ... 317.58 ± 0.03 mm (12.5031 ± 0.0012 inch)

(5) Bore diameter during the first stage

Inside diameter of the cylinder tube ... 349.25 + 0.13 mm - 0.05 mm (13.7500 + 0.0051 - 0.0020 inch)

Outside diameter of the cylinder which includes the 2 lands ... 347.22 ± 0.13 mm (13.6701 ± 0.0051 inch)

(6) Lubricate the sealing lip with a small amount of the lubricant that is being sealed.

(8) Torque for head (8) ... 600 ± 130 N·m (443 ± 96 lb ft)