Upper Radiator Hose - Premature Wear

NO: 07-01-95

GROUP: Cooling

DATE: May 5, 1995

SUBJECT:
BR Upper Radiator Hose Wear

MODELS:
1994 - 1995 (BR) Ram Truck

NOTE:
THIS BULLETIN APPLIES TO All RAM TRUCKS EQUIPPED WITH AN 8.OL (V-10) BUILT PRIOR TO MAY 1,1995 (MDH 05-01-XX).

SYMPTOM/CONDITION:
Premature wear of the upper radiator hose may exist due to contact with the A/C manifold.

PARTS REQUIRED:
1 52028641 Upper Radiator Hose with Protective Sleeve
1 52028568 Manifold Cap, A/C Compressor

REPAIR PROCEDURE:
This bulletin involves replacement of the upper radiator hose with a protective sleeve, and installing a protective cap on the A/C compressor manifold.

WARNING:
DO NOT REMOVE THE CYLINDER BLOCK DRAIN PLUGS OR LOOSEN THE RADIATOR DRAINCOCK WITH THE SYSTEM HOT AND UNDER PRESSURE. SERIOUS BURNS FROM COOLANT CAN OCCUR.

1. Drain the cooling system. If fluid is clean, save for reuse when refilling.





WARNING:
CONSTANT TENSION HOSE CLAMPS ARE USED ON MOST COOLING SYSTEM HOSES. WHEN REMOVING OR INSTALLING, USE ONLY TOOLS DESIGNED FOR SERVICING THIS TYPE OF CLAMP, SUCH AS SPECIAL CLAMP TOOL NUMBER 6094 ( FIGURE 1). SNAP-ON CLAMP TOOL NUMBER HPC-20 MAY BE USED FOR LARGER CLAMPS. ALWAYS WEAR SAFETY GLASSES WHEN SERVICING CONSTANT TENSION CLAMPS.

A NUMBER OR LETTER IS STAMPED INTO THE TONGUE OF CONSTANT TENSION CLAMPS. IF REPLACEMENT IS NECESSARY, USE ONLY AN ORIGINAL EQUIPMENT CLAMP WITH A MATCHING NUMBER OR LETTER.

2. Remove hose clamps and upper radiator hose.

3. Install the new style radiator hose. Ensure clamps are in the proper location and secure.





NOTE:
Make sure that the paint mark at the thermostat end of the hose lines up with the bolt on the thermostat housing for proper orientation (Figure 2).





4. Install plastic manifold cap by snapping it over the A/C compressor manifold (Figure 3).

5. Close drain plug and fill system using saved fluid. Top off system with 50/50 mixture of water and antifreeze.

POLICY:
Reimbursable within the provisions of the warranty.

TIME ALLOWANCE:
Labor Operation No: 07-30-30-90 0.3 Hrs.

FAILURE CODE: PS - New Part