HOUSING 7N6493 - Caterpillar

Rear Frame Group
Pivot shaft (10) is not present in all MTS Undercarriage Arrangements. (1) Torque for 20 bolts (four bolts each-five places) ... 430 60 N m (320 44 lb ft)(2) Apply 7M7456 Bearing Mount to frame assembly bore before seal installation.(3) Torque for switch assembly ... 65 5 N m (48 4 lb ft)(4) Apply 5N5561 Silicone Lubricant to seal at assembly.(5) Install nuts (inside and outside) in sequence shown and torque to ... 70 15 N m (50 11 lb ft) Then re-torque in the same sequence to ... 700 70 N m (520 50 lb ft)(6) Apply 5P3931 Anti-Seize Compound to this surface. (7) Bearing bore diameter after assembly ... 140.114 0.160 mm 5.5163 .0063 in)Diameter of pivot shaft in bearing area ... 139.675 0.025 mm (5.4990 .0010 in)(8) Bearing bore diameter after assembly ... 88.774 0.123 mm 3.4950 .0048 in)Diameter of pivot shaft in bearing area ... 88.437 0.025 mm (3.4818 .0010 in)(9) Apply 7M7260 Liquid Gasket to both surfaces at assembly.Front Frame Group
(1) Install bolts in sequence shown and torque to ... 70 15 N m (50 11 lb ft)Then retorque in the same sequence to ... 700 90 N m (520 65 lb ft)(2) Install bolts in sequence shown and tighten finger tight, then torque to ... 28 7 N m (20 5 lb ft)(5) Install wheel assembly with tread pattern as shown.(6) Rubber toric seals and all surfaces in contact with them must be clean and dry at assembly. Put a thin layer of oil on the surfaces of the metal seals that are in contact just before installation. Seal must be assembled square with the bore and toric must not be bulged or twisted.(C) Dimension to press shaft (3) into idler support (4) ... 122.65 0.25 mm (8.333 .010 in)(D) Diameter of shaft ... 89.959 0.015 mm (3.5417 .0006 in)Diameter of idler support ... 89.894 0.015 mm (3.5391 .0006 in)Bearing Adjustment Procedure
This adjustment is to be performed with the belt removed.1. Make sure outboard bearing cone (8) is loose (slides easily) on shaft (3). Make sure locknut (9) rotates easily on the shaft threads. 2. Torque locknut (9) to ... 68 7 N m (50 5 lb ft). 3. Rotate or oscillate hub (7) an equivalent of two full revolutions.4. Repeat Step 2 and Step 3 three additional times.5. If a tang of the lockwasher is not lined up with a slot in locknut (9) at this time, tighten locknut (9) until the most nearly aligned tang and slot line up.Recoil Group
Right Side(1) Use feeler gauge to set gap at ... 1.50 0.25 mm (.060 .010 in)(2) Torque for valve assemblies ... 50 10 N m (37 7 lb ft)(3) Torque for body assembly ... 15 2 N m (11 1 lb ft) Apply