MERCHANDISING 3236684 - Caterpillar

Removal Procedure
Personal injury can result from contact with refrigerant.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 precaution when a fitting is removed. Slowly loosen the fitting. If the system is still under pressure, release it slowly in a well ventilated area.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.Use a certified recovery and recycling cart to properly remove the refrigerant from the air conditioning system.
Recover the refrigerant. Refer to Service Manual, SENR5664, "All Products Air Conditioning and Heating R-134a for All Caterpillar Machines" for the recovery and the charging procedure. Refer to Special Publication, NENG2500, "Air Conditioning Tools" for the correct tools.
Illustration 1 g01280617
Remove screws (1), tread (2), and floor mat (3).
Illustration 2 g01280631
Remove bolts (5) and (6). Slide seat assembly (4) forward.
Illustration 3 g01797863
Illustration 4 g01797975
Remove screws (8). Reposition cover (7) out of the way.
Illustration 5 g01797229
Remove duct (9) and panel (10).
Illustration 6 g01797256
Disconnect harness assemblies (12).
Remove pressure switch (11) and the O-ring seal.
Remove pressure switch (13) and the O-ring seal.Installation Procedure
Install pressure switches (11) and (13) in the reverse order of removal.
Tighten pressure switches (11) and (13) to a torque of 8 1.5 N m (71 13 lb in).