KIT-TRANSMISSION BEARING 7X2421 - Caterpillar

Procedure to Install the New Battery Isolator
Table 1
Required Parts
Qty Part Number Description
1 489-3811 Relay As
4 489-9943 Stud
1 490-4952 Harness As
4 6V-8185 Nut
3 7K-1181 Cable Strap
4 8T-4205 Hard Washer
4 8T-4896 Hard Washer
Illustration 1 g06061450
(1) Battery disconnect switch
Move battery disconnect switch (1) to the "OFF" position and remove key.
Illustration 2 g06053934
(2) Battery compartment cover
(3) Cable
(4) Battery isolator
(5) Battery
Open battery compartment cover (2). Isolate power by disconnecting cables from both batteries (5).
Disconnect four cables (3) from battery isolator (4). Discard the four nuts and four washers.
Illustration 3 g06053935
(4) Battery isolator
(6) Bolt
(7) Washer
(8) Engine harness
(9) Flexible conduit
(10) Switch harness
(11) Stud
(12) Clip
Remove two clips (12) from switch harness (10) and retain. Disconnect switch harness (10) from engine harness (8), and from battery isolator (4). Remove and discard switch harness (10).
Remove two studs (11) and two flexible conduits (9) and retain.
Remove and discard, four bolts (6), four washers (7), and battery isolator (4).
Illustration 4 g06053936
(13) 8T-4896 Hard washer
(14) 489-9943 Stud
Install four hard washers (13) and four studs (14).
Illustration 5 g06053937
(15) 8T-4205 Hard washer
(16) 6V-8185 Nut
(17) 489-3811 Relay As
(18) Hard washer
(19) Nut
Install relay assembly (17), four hard washers (15), and four nuts (16).
Remove and retain four nuts (19) and four hard washers (18).
Illustration 6 g06053938
(8) Engine harness
(12) Clip
(17) 489-3811 Relay As
(20) Flexible conduit
(21) 7K-1181 Cable strap
(22) Stud
(23) 490-4952 Switch harness As
Install two studs (22) and two flexible conduits (20), retained from Step 5, to relay assembly (17).
Install switch harness (23) to relay assembly (17), and to engine harness (8). Secure with three cable straps (21), and with two clips (12) retained from Step 4.
Illustration 7 g06054528
(2) Battery compartment cover
(3) Cable
(5) Battery
(17) 489-3811 Relay As
(18) Hard washer
(19) Nut
Install four cables (3) to relay assembly (17), using four nuts (19) and four hard washers (18) retained from Step 9.
Connect cables back to both batteries (5) . Close battery compartment cover (2).
Illustration 8 g06061450
(1) Battery disconnect switch
Insert key and move battery disconnect switch (1) to the "ON" position.