Gas system - check leaktightness

AP47.00-W-4752LA

Gas system - check leaktightness

08.07.2019

Engine

936.9 in model 956

with code M2H (Engine M936G, 222 kW (302 hp),1200 Nm)

Engine

936.9 in model 963

with code JM2H (Engine M936G, R6, 7.7 l, 222 kW (302 hp), 1200 Nm.)

 Danger

Risk of explosion due to escaping combustible gas or overheating of gas cylinders.Risk of injury caused by burns to skin and eyes. Risk of frostbite to body parts caused by escaping gas and by touching components near the valves when emptying gas cylinders. Risk of poisoning or suffocation caused by inhaling gas.

Remove any sources of ignition.
Protective clothing, safety gloves and safety glasses must always be worn.
Ensure that the work area is adequately ventilated.
When working on vehicles at ambient temperatures over 60 °C, all gas cylinders must be removed.

AS00.00-Z-0018-01A

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

 Warning

Risk of injury caused by body parts being pinched or crushed as cab is tilted

Ensure that no one is within the tilting range of the cab as it is being tilted. Always tilt the cab all the way to the end position and secure it with the safety strut.

AS60.80-Z-0001-01A

Topical note

Notes on tilting the cab

AH60.80-N-0003-01A

Notes on working on natural gas powered vehicles

AH00.10-N-1000-06A



Check

1

Let engine run at idle speed briefly.

 Then switch off engine.
Only test for leaks on vehicle with completely filled gas reservoirs.

2

Open maintenance flap.

3

Tilt and secure cab.

4

Check all component parts and gas line connections for leak tightness.

Model 956

AP47.00-W-4752-01LA

Model 963

AP47.00-W-4752-01HA

 Moisten components and gas line connections all-round with leakage spray and check for blistering.

Leak location spray LUBRION article no. 626.04

*BR00.45-Z-1005-03A

If a leak is present,



Seal or replace component part or gas line connection.

 After obtaining special order.

5

Tilt back cab.

 Only after all maintenance operations have been completed.

6

Close maintenance flap.

7

Document test result in natural gas system inspection log book.

 The inspection log book is part of the vehicle maintenance booklet.

Repair materials

Number

Designation

Order number

BR00.45-Z-1005-03A

Leak location spray LUBRION article no. 626.04

WIMMER CHEMOTECHNIK
Riedener Weg 50B
82319 STARNBERG, BAYERN
Telephone: (08151) 739981
Fax: (08151) 739982
www.lubrion.com