ELBOW 0059415 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 316-0704 Locking Pliers 2 Start By:
Remove the hood.
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 refrigerant from the air conditioner system. Refer to Service Manual, SENR5664, "Air Conditioning and Heating Systems R-134a for all Caterpillar Machines" for the correct recovery and charging procedure. Refer to Special Publication, NENG2500, "Air Conditioning Tools" for the correct tools.
Illustration 1 g03670570
Use Tooling (A) to crimp hoses (1). Disconnect hoses (1) and harness assembly (2).
Illustration 2 g06072415
Disconnect hose assemblies (3).
Illustration 3 g03670567
Remove bolts (5) and plate (4).
Illustration 4 g03670579
Disconnect harness assemblies (6).
Illustration 5 g06072420
Remove bolts (9) and nuts (7). Remove refrigerant evaporator core and heater core assembly (8).
Illustration 6 g03670629
Illustration 7 g03670630
Remove bolts (11) and tube assemblies (10).
Illustration 8 g03670631
Remove cable straps (14), bolts (13) and switch (12).
Illustration 9 g03670635
Remove bolts (17) and cover (15). Remove refrigerant evaporator core and heater core (16).Installation Procedure
Install refrigerant evaporator core and heater core (16) in the reverse order of removal.
Tighten bolts (17) to a torque of .7 0.2 N m (6 2 lb in).
Tighten bolts (13) to a torque of 1.3 0.4 N m (12 3 lb in).
Tighten bolts (11) to a torque of 2.5 0.3 N m (22 3 lb in).