SEAL KIT 1697831 - Caterpillar

Introduction
This special instructions procedure will describe the rework procedure to add the access cover to improve the tandem housing serviceability.Do not perform any procedure in this Special Instruction until you have read the information and you understand the information.Required Parts
Table 1
Required Parts
Item Qty Part Number Part Description
1 2 395-3690 Cover
2 2 4K-6804 O-Ring Seal
3 16 311-8290 Bolt
4 16 8T-4223 Hard Washer
5 2 2M-9780 O-Ring Seal
6 2 9S-4190 O-Ring Plug Rework Procedure
Illustration 1 g06032303
View of dimensions for drilling new hole
(A) Existing oil level port
(B) New hole 200 mm (7.9 inch)
(C) 75 mm (3 inch)
(D) 15 mm (0.6 inch)
(E) 324 mm (12.8 inch)
Use cover (1) as a template by centering the cover on the tandem, or locate off the existing oil level port (A) location.
Illustration 2 g06034178
View of new holes dimensions
(B) New hole 200 mm (7.9 inch)
(J) 200 mm (7.9 inch)
(K) 250 mm (9.8 inch)
(L) 88.4 mm (3.5 inch)
(M) 125 mm (4.9 inch)
(N) 88.4 mm (3.5 inch)
(P) 125 mm (4.9 inch)
(R) Bolt Holes M12x1.5-6H
Machine hole (B) using the dimensions shown in Illustration 2.
Seal the access cover by either using O-ring (2) or using RTV sealant.Note: If using O-ring (2), machining of the tandem face is required.
Illustration 3 g06032897
View of dimensions
(F) 3 0.5 mm (0.12 0.02 inch)
(G) 0.8 0.2 mm (0.03 0.008 inch)
(H) 45 degrees
(7) Bevel
Machine beveled edge (7) using the dimensions shown in Illustration 3.