PSP FOR CHANGING PISTON RETAINING WASHER ON CERTAIN D5H ANGLE CYLINDERS - COSA LETTER NO. 5 - PS4713 - MAILED COSA Caterpillar

SEPTEMBER 30, 1991
COSA Letter No. 5
PRODUCT SUPPORT PROGRAM FOR CHANGING PISTON RETAINING WASHER ON
CERTAIN D5H ANGLE CYLINDERS
5101   PS4713
NOTE: This program can be administered either before or after
a failure. In either case the decision whether to apply
the program is made by the dealer. When reporting the
repair, use "PS4713" as Part Number, "7755" as Group
Number, and "96" as Description Code.

September 30, 1992

The inside diameter of the piston retaining washer may be too
small on certain D5H angle cylinders. Interference between the
washer and the radius between bolt head and stud may cause the
bolt to loosen. Extensive damage to the cylinder may be caused by
bolt coming out. Only cylinders with date codes between 01 91 and
03 91 are suspected.

Model Identification Number
D5H 1DD 4096, 4099, 4100, 4102, 4103, 4105, 4108, 4111,
4114, 4117, 4158, 4159, 4162, 4164, 4165, 4169,
4173, 4178, 4181, 4194, 4200, 4201, 4204,
4223-4227, 4232-4235, 4240, 4253, 4254, 4257,
4258, 4261-4263, 4274, 4276-4278
8RC 4111, 4119, 4122, 4175, 4180, 4185, 4186, 4189,
4194, 4235, 4236, 4238, 4245, 4266-4271, 4274,
4282, 4283, 4294, 4309, 4314-4317, 4320-4323,
4336, 4350, 4351, 4354, 4355, 4357-4364
HEBE1393

2 - 1H8128 Seal
2 - 2H3745 Bolt
2 - 2K6830 Ring
2 - 7X0616 Washer

On affected cylinders, change 2H3745 Bolt, install new 7X0616
Washer in place of 6E3755 one. Tighten bolt to 1125 +/- 100 Nm.
Reassemble cylinder changing 1H8128 Seal and 2K6830 Ring.
SERVICE CLAIM ALLOWANCE
Product AVSpare Dealer Suggested Customer Suggested
smu/age Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs.
whichever (D/N) (Cost) (C/L) (Sell)
comes
first
0-1500 100% 3.0 0 0 0  0
0-18 mo
NOTE: This is a 3 hours job.

Handle the parts in accordance with your Warranty Bulletin on
warranty parts handling.