CYLINDER HEAD 2385255 - Caterpillar

TECHNICAL INFORMATION BULLETIN May 7, 2003
Wheel Dozers
Soil Compactors
Landfill Compactors
Wheel Loaders
Integrated ToolCarriers 824G (S/N: 4SN1-Up)
834G (S/N: BPC1-Up)
825G (S/N: 6RN1-Up)
826G (S/N: 7LN1-Up)
836G (S/N: 7MZ1-Up, BRL1-Up)
938G (S/N: 4YS1-Up, 8RS1-Up,
9HS1-Up)
950G (S/N: 4BS1-Up, 3JW1-Up)
950G II (S/N: AXR1-Up)
962G (S/N: 5AS1-Up, 4PW1-Up)
962G II (S/N: AXS1-Up, AXY1-Up)
966G (S/N: 3ZS1-Up, 3SW1-Up,
8XW1-Up)
966G II (S/N: ANZ1-Up)
972G (S/N: 7LS1-Up, 4WW1-Up)
972G II (S/N: ANY1-Up)
980G (S/N: 2KR1-Up, 9CM1-Up,
2SR1-Up)
980G II (S/N: AWH1-Up)
988G (S/N: 2TW1-Up)
IT38G (S/N: 7BS1-Up)
IT62G (S/N: 6PS1-Up)
Component Code(s) 138RSUBJECT: Fan Reversing Valve Failures
PROBLEM:
Customer may experience loose plugs and blown out seals on the fan-reversing valve due to a change made to the plugs by the supplier. The supplier has switched back to the original plugs with loctite.
Reversing Valves
187-4365
174-8954
188-9901
200-3114
213-1040
162-2191
Plugs Seals Quantity Torque
9S-8001 4J-7533 11 5.5 +/- 0.5 Nm 49 +/- 4 lb in
9S-8002 3J-7354 1 19 +/- 2 Nm
14 +/- 1 lb ft
9S-8004 3J-1907 5 34 +/- 3 Nm
25 +/- 2 lb ft
9S-8005 3K-0360 2 70 +/- 7 Nm
52 +/- 5 lb ft
SOLUTION:
Replace loose plugs and damaged seals with new plugs and seals. Apply 9S-3263 Sealant (Loctite 242) to the threads of the plugs.
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ALL RIGHTS RESERVED