3500B Engines and 776D, 777D, 784C, 785C, 789C, 793C and 793D Off-Highway Truck/Tractors Caterpillar

Engine Oil Cooler Bypass and Cooling Jet Sequence Valves

Usage:

789C 2BW

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Illustration 1	g03354666

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Table 1
Specification for 9Y-8902 Engine Oil Lines Gp
Item	Qty	Part	Specification Description
1	2	6B-9202 Spring	Length under test force is 68.3 mm (2.69 inch).
			Test force is 84.5 to 99.6 N (19.0 to 22.4 lb).
			Free length after test is 112.7 mm (4.44 inch).
			Both of the 7N-7697 Plunger must start to open at 130 ± 30 kPa (19 ± 4 psi) pressure difference.
			Both of the 7N-7697 Plunger must be fully open at 200 ± 30 kPa (29 ± 4 psi) pressure difference.
2	1	2W-1053 Plug	Torque to 100 ± 15 N·m (74 ± 11 lb ft).
3	1	2W-1635 Spring	Length under test force is 102.0 mm (4.02 inch).
			Test force is 518 ± 26 N (116 ± 6 lb).
			Free length after test is 143.4 mm (5.65 inch).
			The 2W-1969 Bypass Valve must open with 180 ± 20 kPa (26 ± 3 psi) pressure difference.
4	2	0S-1594 Bolt	Use the following procedure in order to tighten the bolts of the clamp assembly: 1. Tighten the clamp assembly until the clamp assembly snug to tube. 2. Tighten the clamp assembly to the adapter. 3. Tighten the clamp assembly to the tube.
5	2	0S-1571 Bolt
6	2	109-2332 O-Ring Seal	Lubricate the bore lightly with the lubricant that is being sealed.

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