CONTROL GP-STEERING & TMSN 1745968 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool    Part Number    Part Description    Qty    
A     189-0408     Shackle As     1    
Disconnect batteries before performance of any service work.
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.
Note: Put identification marks on all hoses, on all hose assemblies, on all wires, and on all tube assemblies for installation purposes.
Recover the air conditioner refrigerant from the air conditioner system. Refer to Service Manual, SENR5664, "Air Conditioning and Heating Systems with R-134a Refrigerant". Refer to Dealer Service Tool Catalog, NENG2500, "Air Conditioning Tools" for the correct tools.
Turn the battery disconnect switch to the OFF position. Refer to Operation and Maintenance Manual, "Battery Disconnect Switch".
Illustration 1 g01137855
Attach Tooling (A) and a suitable lifting device to plate (1). The weight of plate (1) is approximately 54 kg (120 lb). Remove bolts (2) and plate (1) .
Illustration 2 g01137856
Remove nuts (3) and box assembly (4). Open door assembly (5) .
Illustration 3 g01137857
Disconnect hose assembly (6). Remove bolts (7) and (8) .
Illustration 4 g01137859
Remove bolts (10), (11), and (12). Remove bracket assembly (9) and guard assembly (13) .
Illustration 5 g01137868
Use two people in order to remove battery (14). The weight of battery (14) is approximately 25 kg (55 lb). Repeat for the remaining batteries.
Illustration 6 g01137869
Remove cover (15) .
Illustration 7 g01137930
Disconnect hoses (16) and hose assemblies (17) .
Illustration 8 g01137935
Disconnect harness assemblies (18) and (19). Remove evaporator cores (20) .
Illustration 9 g01137940
Remove heater core (21) from refrigerant evaporator core (22) .Installation Procedure
Install the refrigerant evaporator core and heater core (21) and (22) in the reverse order of the removal procedure.