PLATE 1247350 - Caterpillar

Removal Procedure
Table 2
Required Tools    
Tool     Part Number     Part Description     Qty    
A     -     Loctite 271     -    Start By:
Remove the storage box and covers.
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.
Personal injury can result from hot coolant, steam and alkali.At operating temperature, engine coolant is hot and under pressure. The radiator and all lines to heaters or the engine contain hot coolant or steam. Any contact can cause severe burns.Remove cooling system pressure cap slowly to relieve pressure only when engine is stopped and cooling system pressure cap is cool enough to touch with your bare hand.Do not attempt to tighten hose connections when the coolant is hot, the hose can come off causing burns.Cooling System Coolant Additive contains alkali. Avoid contact with skin and eyes.
Refer to Service Manual, SENR5664, "Air Conditioning and Heating Systems with R-134a Refrigerant" for the correct recovering and charging procedures. Refer to Special Publication, NEDG5065, "Air Conditioning Tools" for the correct tools.
Illustration 2 g02217533
Remove bolts (1) and plate assembly (2) .
Turn heater valves to the OFF position.
Illustration 3 g02553718
Remove bolts (3) and (9). Remove bracket (7).
Disconnect hoses (6) and (8). Disconnect hose assemblies (10) .
Disconnect harness assembly (5) and remove pressure switch (4) .
Illustration 4 g02553736
Remove bolts (11) and duct assembly (12) .
Disconnect harness assemblies (15), (16), and (17). Disconnect bracket (18) .
Remove bolts (13) and support assembly (14) .
Illustration 5 g02553739
Remove bolts (19) and duct assembly (20) .
Illustration 6 g02553741
Disconnect duct assembly (22). Remove bolts (23). Remove heating and air conditioner unit (21) .Installation Procedure
Install heating and air conditioner unit (21) in the reverse order of removal.
Tighten bolts (23) to a torque of 22 2 N m (195 18 lb in).
Tighten bolts (19) to a torque of 22 2 N m (195 18 lb in).
Tighten bolts (9) to a torque of 10 2 N m (89 18 lb in)
Apply Tooling (A) to the threads of bolts (1) .