73336 Mercury PLUG, FRONT COVER

Table 1
Required Tools    
Tool    Part Number    Part Description    Qty    
A     6V-6146     Load Leveling Beam     1    
ZZ     179-4453     Protective Cap     1    
179-4493 Protective Cap     2    
179-4494 Protective Cap     4    
179-4495 Protective Cap     3    
179-4496 Protective Cap     1    
5P-2909 Plug     1    
8S-4950 Cap     1    
8S-4951 Cap     1    
9S-8927 Cap     2    
9S-8895 Cap     5    
9S-8896 Cap     5    Start By:
Connect the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".
Release the hydraulic system pressure. Refer to Disassembly and Assembly, "System Pressure - Release".
Remove the engine bottom guards. Refer to Disassembly and Assembly, "Bottom Guard (Engine) - Remove and Install".
Remove the hood. Refer to Disassembly and Assembly, "Hood - Remove".
Remove the air cleaner. Refer to Disassembly and Assembly, "Air Cleaner - Remove and Install".
Remove the radiator header tank. Refer to Disassembly and Assembly, "Radiator Tank (Header) - Remove".
Remove upper drive shaft. Refer to Disassembly and Assembly, "Drive Shaft (Upper) - Remove and Install".Note: SERVICE DATA: TOOLING (ZZ) WILL NOT BE IDENTIFIED IN PHOTOGRAPHS IN THE REMOVAL OR THE INSTALLATION. THIS TOOLING IS SHOWN IN ORDER TO ASSIST THE EXPERIENCED SERVICEMAN.Note: Cleanliness is an important factor. Before the removal procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.Note: Put identification marks on all lines, on all hoses, on all wires and on all tubes for installation purposes. Plug all lines, all hoses and all tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
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 contact with refrigerant.This system is under pressure at all times, engine running or not. Heat should never be applied to a charged system. 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 caution 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.Before any checks of the air conditioning and heating system are made, move the machine to a smooth horizontal surface. Lower all implements to the ground. Make sure the transmission is in neutral or park and that the parking brake is engaged. Keep all other personnel either away from the machine or where they can be seen.
Drain the hydraulic tank into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Capacities (Refill)" for the capacity of the hydraulic tank. Refer to Operation and Maintenance Manual, "Hydraulic System Oil - Change" for the proper draining procedure.
Recover the air conditioner refrigerant from the air conditioner system. Refer to Service Manual, SENR5664, "Air Conditioning and Heating Systems with R-134a Refrigerant" for the procedure. Refer to Special Publication, NEDG5065, "Air Conditioning Tools" for the tools.
Illustration 1 g01107619
Remove cover (1) .
Remove two bolts (2) and firewall (3) .
Illustration 2 g01107963
Remove two bolts (4) .