615C Series II Wheel Tractor-Scraper Hydraulic System Elevator Speed Reducer Caterpillar

Illustration 1	g01012457

Approximate oil capacity ... 10.0 L (2.64 US gal)

Align the holes in rear gear (2) with plugs (3) and (17) in housing (1) .

(4) Stake material over pins (4) after the pins are assembled.

(5) As shown, the vent valve must be in this position.

(6) Before you paint the elevator speed reducer, apply grease to the flange faces of shaft (14). Apply grease to the bores of trunnion mount (16).

(8) Bolts

Quantity ... 3

Preliminary torque ... 35 ± 5 N·m (26 ± 4 lb ft)

Final torque ... 150 ± 20 N·m (110 ± 15 lb ft)

Note: Tighten the bolts to the preliminary torque. Measure the gap between plate (15) and shaft (14). Install the amount of shims (10) that is 0.03 to 0.08 mm (0.001 to 0.003 inch) smaller than the gap. Place the thicker shims on the outside of the shim pack. Torque the bolts to the final torque. Align a flat on the bolt head opposite pin hole (7) and install a 045-5106 Spring Pin into the pin hole. As needed, tighten the bolts more in order to align a flat of the bolt head opposite pin hole (7) .

(9) The rubber toric seals and all the contacting surfaces must be clean and dry at assembly. Just before assembly, apply a thin layer of oil to the contacting surfaces of the metal seal rings. The seal rings must be assembled square. The bore should not bulge and the bore should not be twisted. The rubber toric seal should not bulge and the rubber toric seal should not twist.

(10) 2T-3249 Shim Pack

Total quantity ... 22

Total assembled thickness of shims ... 3.32 ± 0.50 mm (0.131 ± 0.020 inch)

Thickness of one shim ... 0.15 mm (0.006 inch)

Thickness of one shim ... 0.76 mm (0.030 inch)

Thickness of one shim ... 0.05 mm (0.002 inch)

Outside diameter ... 80.0 ± 0.5 mm (3.15 ± 0.020 inch)

Note: The shim pack must have a level surface and the shim pack must be free from dents and wrinkles.

(11) Coat the seals with grease. Use 5P-0960 Molybdenum Grease

(12) When you assemble the two sleeves, apply a thin coat of 4C-9797 Grease Tube to the sleeves.

(13) Hand pack bearings with grease. Use 5P-0960 Molybdenum Grease.

(18) Torque for 16 bolts ... 118 to 131 N·m (87 to 97 lb ft)

(19) Make sure that the wax has been removed from the drain plug.