Cooling and heating system - Check condition of radiator, lines and hoses

AP20.00-P-2050G

Cooling and heating system - Check condition of radiator, lines and hoses

30.01.2020

Engine

102, 103, 104, 112, 113, 117, 273, 602, 603, 606, 612, 628, 642 in model 463

Engine

102, 110, 115, 602, 616, 617 in model 460

Engine

102, 602, 612, 642 in model 461

1

Cap

Shown on engine 612.965

1

Cap

Shown on engine 642.975

1

Cap

Shown on ENGINE 642.970

1

Cap

 Warning

Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.

Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.

AS20.00-Z-0001-01A

Topical note

Notes on coolant

AH20.00-N-2080-01A



Check

1

Open cooler or coolant expansion reservoir and remove cap (1).

 Slowly remove cap (1) and release overpressure.

2

Check and correct coolant level.

Engine 273, 642 in model 463
Engine 642 in model 461

AP20.00-P-2010GY

Engine 102 in model 460, 461.217/219/227/229/238/239/249/266/267, 463.200/204/220/221/224/225
Engine 103 in model 463.207/227/228
Engine 104 in model 463.208/230/231
Engine 110 in model 460
Engine 115 in model 460
Engine 602 in model 460, 461.321/322/323/326/327/328/329/335/336/337/338/341/365/366/367/368/401/402/403/404/405/450/451/452/454/455/456/458/459, 463.304/324/325
Engine 603 in model 463.300/307/320/321/327/328
Engine 606 in model 463.308/330/331
Engine 616 in model 460
Engine 617 in model 460

AP20.00-P-2010G

Engine 112.945 in model 463.209/232/233/244/245/250
Engine 113.962 in model 463.206/240/241/247/248/249/254
Engine 113.982 in model 463.241/243/246
Engine 113.993 in model 463.270/271

AP20.00-P-2010GA

3

Attach tester cap and pressure pump.

 Pressure pump

*124589242100

 Test cap

*124589009100

 Test cap

*210589009100

4

Build up test pressure with pressure pump.

 The test pressure must match the opening pressure of the cap (1).

 Read off the opening pressure from the code number of the cap (1).

5

Check components of engine cooling system and heating system for leaks.

 Check for condition, secure mounting and leak tightness:
 Engine and installed major assemblies
 Freeze plug
 Radiator
 Coolant pump
 Coolant expansion reservoir
 Heater heat exchanger
 Regulation valve
 Stationary heater unit

 Check for condition, leak tightness, secure mounting, chafe marks and correct routing:
 Coolant lines and hoses as well as their fastenings

 Retighten screw clamps if necessary.

If there are problems,



rectify all damage, subject to a separate repair order.

6

Release test pressure, and remove pressure pump and tester cap.

7

Check coolant level and correct if necessary.

Engine 273, 642 in model 463
Engine 642 in model 461

AP20.00-P-2010GY

Engine 102 in model 460, 461.217/219/227/229/238/239/249/266/267, 463.200/204/220/221/224/225
Engine 103 in model 463.207/227/228
Engine 104 in model 463.208/230/231
Engine 110 in model 460
Engine 115 in model 460
Engine 117 in model 463.228
Engine 602 in model 460, 461.321/322/323/326/327/328/329/335/336/337/338/341/365/366/367/368/401/402/403/404/405/450/451/452/454/455/456/458/459, 463.304/324/325
Engine 603 in model 463.300/307/320/321/327/328
Engine 606 in model 463.308/330/331
Engine 612.965 in model 463.322/323
Engine 612.966 in model 461.302/331/332/342/345
Engine 616 in model 460
Engine 617 in model 460
Engine 628.962 in model 463.309/332/333

AP20.00-P-2010G

Engine 112.945 in model 463.209/232/233/244/245/250
Engine 113.962 in model 463.206/240/241/247/248/249/254
Engine 113.982 in model 463.241/243/246
Engine 113.993 in model 463.270/271

AP20.00-P-2010GA

8

Seal cooler or coolant expansion reservoir with cap (1).