797F and 797F XQ Off-Highway Truck Power Train Caterpillar

Illustration 1	g01948663

Note: Lubricate the gear pump group with clean oil before you operate. The gear pump group must rotate freely by using your hand.

(1) Section for transmission lubrication

Rotation ... Counterclockwise

Test speed ... 1800 rpm

Test pressure ... 480 kPa (70 psi)

Minimum flow ... 566.0 L/min (149.5 US gpm)

(2) Section for torque converter charging

Rotation ... Counterclockwise

Test speed ... 1800 rpm

Test pressure ... 930 kPa (135 psi)

Minimum flow ... 584.0 L/min (154.3 US gpm)

(B) Diameter of the new shaft of the gear ... 50.795 ± 0.005 mm (1.9998 ± 0.0002 inch)

Note: Make sure that the gear (3) slides freely on two woodruff keys (4).

Illustration 2	g01948664
Detail C

(G) Location of joints of six sleeve bearings from the vertical centerline ... 30 ± 15 degrees

(H) Distance from end of four dowels to the face of the oil pump body assembly (7) ... 5.5 ± 0.5 mm (0.22 ± 0.02 inch)

(J) Installation depth of two bolt dampers (6) into the oil pump body assembly ... 26.5 ± 0.5 mm (1.04 ± 0.02 inch)

(K) Installation depth of two sleeve bearings into the oil pump body assembly ... 1.5 ± 0.5 mm (0.06 ± 0.02 inch)

(5) 262-0562 Sleeve Bearing

Inside diameter ... 50.918 ± 0.040 mm (2.0046 ± 0.0016 inch)

Outside diameter ... 55.732 ± 0.025 mm (2.1942 ± 0.0010 inch)

Illustration 3	g01948665
Detail D

(M) Installation depth of four sleeve bearings into the cover assembly (9) ... 1.50 ± 0.25 mm (0.059 ± 0.010 inch)

(N) Distance from end of the sleeve (8) to the face of the cover assembly ... 11.0 ± 0.5 mm (0.43 ± 0.02 inch)

Illustration 4	g01948666
Detail E (10) Cover assembly

(9) 154-1986 Sleeve Bearing

Outside diameter ... 57.226 ± 0.013 mm (2.2530 ± 0.0005 inch)

Thickness ... 3.366 ± 0.064 mm (0.1325 ± 0.0025 inch)