Check stall speed of torque converter clutch · ar2540g0800a · Mercedes-Benz WIS

AR25.40-G-0800A

Check stall speed of torque converter clutch

12.3.96

ENGINE 602.941 in MODEL 408 with CODE (G30) Torque converter clutch (WSK)

ENGINE 354.926 /929, 364.982 /985 in MODEL 418 with CODE (G30) Torque converter clutch (WSK)

ENGINE 356.914 /950 /954, 357.912 /913 in MODEL 427 with CODE (G30) Torque converter clutch (WSK)

ENGINE 356.955 /956 /980 /997 /998, 357.912 /913 in MODEL 437 with CODE (G30) Torque converter clutch (WSK)

Check stall speed of torque converter clutch

G25.40-3025-10

1 Tachometer

	Testing
 Danger!	Risk of accident as vehicle may start off by itself with the engine running. Risk of injury as working around the engine during start-up or while running may result in contusions and burns	Secure vehicle to prevent it from moving. Wear closed and snug-fitting work clothes. Do not grasp hot or rotating parts.	AS00.00-Z-0005-01A
 Danger!	Risk of injury from hand being jammed and bruised when tilting cab	Ensure that no one is within the tilting range of the cab during tilting. Always tilt cab to end position and secure with safety prop.	AS60.80-Z-0001-01A
	Notes on tilting cab		AH60.80-N-0003-01B
1	Tilt cab	Model 408, 418	AR60.80-G-0010A
	Tilt cab	Models 427, 437	AR60.80-G-0010B
2	Check and correct oil level in torque converter clutch
			AP25.40-G-0200A
3	Check oil circuit for leaks	 Visual inspection.
4	Connect tester (1) for recording rpm	 Do not route connecting cables in rotating and hot parts.
		 Refer to equipment manufacturer's operating instructions.	*WH58.30-Z-1006-13A
5	Lower cab	Model 408, 418	AR60.80-G-0010A
	Lower cab	Models 427, 437	AR60.80-G-0010B
6	Apply parking brake
7	Engage highest gear
8	Press service brake with the left foot
9	Check stall speed	Models 408	*BE25.40-N-1001-02A
		Models 418, 427, 437	*BE25.40-N-1001-02B
10	Apply full throttle with right foot	 The test must only be carried out for approx. 10 seconds due to the severe heat build-up in the converter.
		 Stall speed (engine speed when stalling the vehicle) must be achieved in accordance with engine output.
		 If the stall speed is up to 600 rpm lower than the specified stall speed, check engine output, stator freewheel may also be defective.
		 If the stall speed is up to 200 rpm higher than the specified stall speed, the drive clutch is slipping or the torque converter clutch is damaged (stator freewheel slips).
		 In every case it is necessary to investigate the major assembly or repair it
11	Tilt cab	Model 408, 418	AR60.80-G-0010A
	Tilt cab	Models 427, 437	AR60.80-G-0010B
12	Detach tester (1) for recording rpm		*WH58.30-Z-1006-13A
13	Lower cab	Model 408, 418	AR60.80-G-0010A
	Lower cab	Models 427, 437	AR60.80-G-0010B

Test and adjustment values for stall speed

Number	Designation		Engine 602.941 with WSK 270 in model 408


BE25.40-N-1001-02A	Stall speed (measurement period  10 seconds)	rpm	1950-2050

Test and adjustment values for stall speed of torque converter clutch

Number	Designation		Engine 364.982/985 354.926/929 with TCC 310/3A in model 418	Engine 356.955 357.912 with TCC 310/3 in model 427	Engine 356.956 with TCC 310/3 in model 427/437


BE25.40-N-1001-02B	Stall speed (measurement period  10 seconds)	rpm	1550-1750	1600-1800	1700-1900

Commercially available tools

Number	Designation
WH58.30-Z-1006-13A	Tachograph

Referenced documents

ah6080n000301b Notes on tilting the cab
ap2540g0200a Check oil level in torque converter clutch and correct if necessary
ar6080g0010a Tilt cab to repair position, tilt back
ar6080g0010b Tilt cab to repair position, tilt back
as0000z000501a 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.
as6080z000101a Risk of injury caused by body parts being pinched or crushed as cab is tilted