Section 12-03A: Air Conditioning System, Manual A/C-Heater
1996 F-150, F-250, F-350, F-Super Duty and Bronco, F-Super Duty Motorhome Chassis Workshop Manual
REMOVAL AND INSTALLATION

Suction Accumulator/Drier

NOTE: Replacement of the suction accumulator/drier is not required when repairing the air conditioning system except when there is physical evidence of system contamination from a failed A/C compressor or damage to the suction accumulator/drier.

Removal

  1. NOTE: Cap all open refrigerant lines and components to prevent entry of dirt and moisture into the A/C system.

    Discharge refrigerant from air conditioning system following recommended service procedures. Refer to Section 12-00. Observe all safety precautions.

  1. Disconnect electrical connector from A/C cycling switch (19E561).

  1. Remove A/C cycling switch by unscrewing it from suction accumulator/drier (19C836).

  1. Disconnect A/C manifold and tube (19D734) from suction accumulator/drier. Use two wrenches to prevent component damage. Cap A/C manifold and tube to prevent entrance of dirt and moisture.

  1. Loosen fitting connecting suction accumulator/drier to A/C evaporator core (19860). Use two wrenches to prevent component damage.

  1. Remove two screws attaching suction accumulator/drier strap to A/C evaporator housing (19850) and one screw attaching clip to inlet tube.

  1. Drain the refrigerant oil from the suction accumulator/drier described in Section 12-00.

Installation

  1. Add oil to the new suction accumulator/drier prior to installation. Refer to Section 12-00.

  1. Using a new O-ring lubricated with clean refrigerant oil, connect suction accumulator/drier to tube. Tighten connection finger-tight.

  1. Position A/C accumulator bracket (19D607) on suction accumulator/drier and attach to A/C evaporator case (19897) and clip to inlet tube. Align strap and clip with mounting bracket and install three attaching screws. Loosen connection of suction accumulator/drier to A/C evaporator core if necessary to reposition suction accumulator/drier to install A/C accumulator bracket attaching screws.

  1. Tighten fitting to 34-44 Nm (25-32 lb-ft) using two wrenches.

  1. Using a new O-ring lubricated with clean refrigerant oil, connect A/C manifold and tube to suction accumulator/drier. Use two wrenches and tighten connection to 34-44 Nm (25-32 lb-ft).

  1. Install a new O-ring lubricated with clean refrigerant oil on nipple of suction accumulator/drier. Install A/C cycling switch. Tighten A/C cycling switch to 7-13 Nm (62-115 lb-in) if A/C cycling switch has metal base and hand-tighten only if A/C cycling switch has plastic base.

  1. Connect electrical connector to A/C cycling switch.

  1. Leak test, evacuate and charge system following the recommended service procedures. Refer to Section 12-00. Observe all safety precautions.

  1. Check system for proper operation.