14L Motor Grader Hydraulic and Steering System Caterpillar

Circle Drive

Usage:

14L B94

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Illustration 1	g06352600

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Table 1
Item	Qty	Part	Specification Description
1	1	1H-7339 O-Ring Seal	Lubricate the seal lightly with the lubricant that is being sealed.
2	As required, use the following shims in order to obtain the preload on the bearings.
	10	7D-8983 Shim	Thickness of one shim is 0.127 mm (0.0050 inch).
	6	7D-8984 Shim	Thickness of one shim is 0.178 mm (0.0070 inch).
3	1	2H-3935 O-Ring Seal	Lubricate the seal lightly with the lubricant that is being sealed.

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Illustration 2	g03833284
Section A-A

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Table 2
Item	Qty	Part	Specification Description
-	4	1F-7958 Full Nut	Use the following procedure in order to tighten the nuts : 1. Tighten the nut (4) to 20 N·m (177 lb in) and nut (5) to 40 N·m (30 lb ft) and again, tighten the nut (4) to 80 N·m (59 lb ft) and nut (5) to 80 N·m (59 lb ft). 2. Rotate the worm three revolutions then back off the nuts. 3. Tighten the nut (4) to 20 N·m (177 lb in) and nut (5) to 40 N·m (30 lb ft) and then tighten the nut (4) to 40 N·m (30 lb ft) and rotate the worm to three revolutions. 5. Tighten the nut (4) to 40 N·m (30 lb ft) and tighten the nut (5) to 40 N·m (30 lb ft). 6. Measure the average gap between the housing and adapter at the locations being torqued. Subtract 0.145 ± 0.065 mm (0.0057 ± 0.0026 inch) to obtain the desire shim pack thickness.

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Illustration 3	g03833287
Section B-B

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Table 3
Item	Qty	Part	Specification Description
6	6	6Y-7953 Friction Disc	Thickness of 11 new friction discs is 24.82 ± 1.13 mm (0.977 ± 0.044 inch) Thickness of friction disc (6) is 2.87 ± 0.08 mm (0.113 ± 0.003 inch). Thickness of friction disc (7) is 1.52 ± 0.13 mm (0.060 ± 0.005 inch).
7	5	2G-0478 Friction Disc
8	3	6V-5686 Bolt	Use the following bolt tightening procedure to tighten the bolts : 1. Tighten the bolts to 150 ± 20 N·m (111 ± 15 lb ft). 2. Remove the bolts after 45 minutes in order to add the shims (9). 3. Install the bolts, and tighten to 150 ± 20 N·m (111 ± 15 lb ft). 4. Again tighten to 240 ± 40 N·m (177 ± 30 lb ft). 5. Confirm the torque is 240 ± 40 N·m (177 ± 30 lb ft).
9	As required, use shim (9) in order to obtain a 2.30 ± 0.25 mm (0.091 ± 0.010 inch) deflection of disc spring (10).
	6	307-1959 Shim	Thickness of one shim is 0.13 mm (0.005 inch).
	1	307-1960 Shim	Thickness of one shim is 0.25 mm (0.010 inch).
	1	307-1962 Shim	Thickness of one shim is 0.5 mm (0.02 inch).
10	1	6G-6122 Disc Spring	Length under test force is 10.63 mm (0.419 inch). Test force is 98490 ± 19700 N (22142 ± 4429 lb). Free length after test is 12.94 mm (0.509 inch).
11	1	5H-4909 O-Ring Seal	Lubricate the O-ring seal lightly with the lubricant that is being sealed.
12	7	9T-8051 Bolt	Torque to 68 ± 7 N·m (50 ± 5 lb ft).
13	1	5K-5288 Duo-Cone Seal Gp	Rubber toric seals and all surfaces in contact with the seals must be clean and dry at assembly. Apply a thin layer of oil on the surfaces of the metal seals that are in contact just before installation. The metal seal must be assembled square with the bore. The rubber toric seals must not bulge. The rubber toric seals must not be twisted.
14	1	2B-8293 O-Ring Seal	Lubricate the seal lightly with the lubricant that is being sealed.
15	1	1A-1415 Nut	Torque to 325 ± 27 N·m (230 ± 20 lb ft).

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Illustration 4	g03833290
253-4678 Drive Housing

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Table 4
Item	Qty	Part	Specification Description
16	4	2D-8154 Taperlock Stud	Torque to 55 ± 10 N·m (41 ± 7 lb ft).
17	4	286-2631 Taperlock Stud	Torque to 170 ± 30 N·m (125 ± 22 lb ft).
18	1	8D-7426 Bushing	Bore before assembly is 63.50 ± 0.03 mm (2.500 ± 0.001 inch). Installation depth is 2.0 ± 0.5 mm (0.08 ± 0.02 inch).

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