21596642 Volvo.Penta Control valve

Table 1
Required Tools
Tool Part Number Part Description Qty
A 421-5663 Lifting Eye Assembly 1
B 439-3938 Link Bracket 1
C 477-8634 Load Leveler Gp 1
D 422-8733 Jack Stand Gp 2
E 422-2352 Jack Stand Gp 2 Start By:
Remove the main drive shaft.
Remove the cab.
Remove the clean emissions module.
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 allow sufficient time for the cooling system to cool.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 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.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 coolant. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) -Change" 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.
Turn the fuel valve to the OFF position.
Turn the battery disconnect switch to the OFF position.
Recover the refrigerant. Refer to Service Manual, SENR5664, "Air Conditioning and Heating R134a for All Caterpillar Machines" for the recovery and the charging procedure. Refer to Special Publication, "Dealer Service Tools Catalog", "Air Conditioning Tools" for the correct tools.
Illustration 1 g06330181
Cut cable straps (2) and position harness assembly (1) out of the way.
Cut cable straps (4) and position harness assembly (3) out of the way.
Illustration 2 g06330183
Attach a suitable lifting device to hood support assembly (5). The weight of hood support assembly (5) is approximately 36 kg (80 lb).
Illustration 3 g06330185
Remove bolts (6). Repeat for the opposite side.
Remove hood support assembly (5).
Illustration 4 g06330201
Remove bolts (7), bolts (8), and bolts (9).