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Hydraulic Fluid Regulator > < Customer Interest for Hydraulic Fluid Accumulator:|488804
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Hydraulic Fluid Accumulator: All Technical Service Bulletins
Central Hydraulic System - Fluid Loss

Applies To:

ALL 5000 MODELS               1984-1987

Subject:

Central Hydraulic System - Fluid Loss

(Supercedes Product Circular 88-03, January 29, 1988)

Number:

Group:

88-04
March 2, 1988

48

Brakes - Steering
Cause:

A.

Oil loss at hose end crimp.
1.

Pump to accumulator hose.

2.

Pump to steering rack hose.

B.

Oil loss at hose connection sealing washer.

C.

Oil seepage at hydraulic pump.

Production Change:

A.

1. Improved hose end crimp on hose, P/N 443 698 483C. Identified by "19 5" stamped on hose end.

As of June 1985 VIN: 44_F_137017

2.

Improved rubber composition, P/N unchanged.

As of January 1987 VIN: 44_H_084800

B.

Tinned copper sealing washers.

As of:

November 1986 VIN: 44_H_059985

C.

Vacuum filling method of hydraulic pump. 100% quality check of pump check valve. Improved sealing between halves.

As of:

June 1987     VIN: 44_H_127440

Hydraulic Fluid Regulator > < Customer Interest for Hydraulic Fluid Accumulator:|488804