0305158 JOHNSON RETAINER,Oil

Illustration 1 g06569330Start By:
Remove the engine enclosure.
Remove the air filter.
Remove the diesel exhaust fluid tank.
Personal injury or death may result from failure to adhere to the following procedures.Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire.Clean up all leaked or spilled fuel. Do not smoke while working on the fuel system.Turn the disconnect switch OFF or disconnect the battery when changing fuel filters.
Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
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.
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.
Drain the fuel tank. Refer to Operation and Maintenance Manual, "Refill Capacities" for the correct draining and filling procedures.
Drain the hydraulic oil. Refer to Operation and Maintenance Manual, "Hydraulic System Oil - Change" for the correct draining and filling procedures.
Drain the coolant. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change" for the correct filling and draining procedure.
Recover the air conditioner refrigerant from the air conditioner system. 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 2 g06553991
Remove bolts (3).
Disconnect hose assembly (1) and hose assembly (2).
Position hose assembly (1) and hose assembly (2) out of the way.
Illustration 3 g06553995
Remove bolts (5).
Position dryer assembly (4) out of the way.
Illustration 4 g06553998
Remove bolts (6) and the clips.
Illustration 5 g06554002
Remove bolt (7) and the clip.