430E Backhoe Loader Caterpillar

Refrigerant Compressor - Remove and Install

Usage:

430E SCD

Specifications

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Illustration 1	g01349060
View of the 214-4302 Compressor

(1) Final installation torque ... 35 ± 3 N·m (26 ± 2 lb ft)

Note: Oil plug (3) is under pressure when the system is pressurized.

(2) Pressure relief valve

Installation Torque ... 13 ± 1 N·m (9.6 ± 0.7 lb ft)

Opening pressure of the relief valve ... 3500 kPa to 4100 kPa (508 psi to 595 psi)

Sealing pressure of the relief valve ... 2900 kPa (420 psi)

(3) Oil plug

Displacement per revolution ... 214.7 cc (13.101 in³)

Maximum Compressor RPM ... 4000 rpm

R-134a Refrigerant

DuPont ... SUVA TRANS A/C HFC134a

ICI ... KLEA 134a

Refrigerant Oil

Oil capacity ... 180 cc (10.9836 in³)

Cat 4C-2959 Air Conditioner Lubricant (PAG)

Magnetic Clutch

Coil resistance ... 3.2 ohms

Voltage ... 12 DCV

Minimum voltage for engagement ... 8 DCV

Maximum Current ... 3.75 amp

Apply 4C-4030 Thread Lock Compound to the mounting screws for the magnetic coil.

Removal Procedure

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Personal injury can result from contact with refrigerant.
This system is under pressure at all times, even if the engine is not running. Heat should never be applied to a charged system.
Contact with refrigerant can cause frost bite. Keep face and hands away to help prevent injury.
Protective goggles must always be worn when refrigerant lines are opened, even if the gauges indicate the system is empty of refrigerant.
Always use caution when a fitting is removed. Slowly loosen the fitting. If the system is still under pressure, evacuate the system recovering the refrigerant before removing the fitting.
Personal injury or death can result from inhaling refrigerant through a lit cigarette.
Inhaling air conditioner refrigerant gas through a lit cigarette or other smoking method or inhaling fumes released from a flame contacting air conditioner refrigerant gas, can cause bodily harm or death.
Do not smoke when servicing air conditioners or wherever refrigerant gas may be present.

Before any checks of the air conditioning and heating system are made, move the machine to a smooth horizontal surface. Lower all implements to the ground. Make sure the transmission is in neutral or park and that the parking brake is engaged. Keep all other personnel away from the machine or where they can be seen.

Refer to Service Manual, SENR5664, "Air Conditioning and Heating Systems with R-134a Refrigerant" in order to recover and charge the air conditioner system. Refer to Special Publication, NENG2500, "Air Conditioning Tools" for the correct tools.

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