Measuring vehicle frame using frame measuring gages · ar3130w0040a · Mercedes-Benz WIS

AR31.30-W-0040A

Measuring vehicle frame using frame measuring gages

17.2.06

MODEL 374, 375, 930, 932, 933, 934, 940, 942, 943, 944, 950, 952, 953, 954, 957, 958, 970, 972, 974, 975, 976

W31.30-0043-11

Illustrated on model 950.5

1 Frame measuring gauge

2 Measuring tip

3 Suspended straight edge

	Notes on frame damage and possible causes		AH31.30-N-0002-01A
1	Prepare vehicle for measurement		AR31.30-W-0040-01A
2	Print the form for frame alignment check	 Enter the values measured during the following stages in the form.
	Frame alignment check protocol		OF31.30-N-3000-01A
3	Connect the frame measuring gauges (1) to the vehicle frame		AR31.30-W-0040-02A
			*WE58.40-Z-1001-01C
			*WE58.40-Z-1002-01C
			*WE58.40-Z-1003-01C
4	Measure lateral distortion of vehicle frame	 with frame measurement gauges.	AR31.30-W-0040-03A
			*BE31.30-N-1001-01A
			*WE58.40-Z-1001-01C
			*WE58.40-Z-1002-01C
			*WE58.40-Z-1003-01C
		 If the distortion lies outside the tolerance: 
		Repair lateral distortion of vehicle frame.	AR31.30-W-0050A
5	Measure deflection and torsion of vehicle frame	 with frame measurement gauges.	AR31.30-W-0040-04A
			*BE31.30-N-1002-01A
			*BE31.30-N-1003-01A
			*BE31.30-N-1004-01A
			*WE58.40-Z-1001-01C
			*WE58.40-Z-1002-01C
			*WE58.40-Z-1003-01C
		 If the twist lies outside of the tolerance: 
		Straighten vertical distortion of vehicle frame.	AR31.30-W-0050A
6	Measure diagonal displacement of vehicle frame		AR31.30-W-0040-05A
			*BE31.30-N-1001-01A
		 If the diagonal shift is outside the tolerance, replace vehicle frame.

Test values for vehicle frame

Number	Designation		Model 374.4, 375.1, 958.0, 970, 972, 974, 975, 976	Model 374.5/6, 375.3/4, 930, 932, 933, 934, 940, 942, 943, 944, 950, 952, 953, 954, 957, 958.2/4


BE31.30-N-1001-01A	Lateral displacement and diagonal displacement of frame	mm	 5	 5
BE31.30-N-1002-01A	Deflection of frame	mm	10	10
BE31.30-N-1003-01A	Distance from the upper belt to the measurement device in length of  5 m	mm/m	2	2
BE31.30-N-1004-01A	Torsion of frame	mm	10	10

Workshop equipment

WE58.40-Z-1001-01C	Celette straightening bracket set, CC 7942
WE58.40-Z-1002-01C	Celette commercial vehicle frame straightening bench, type Rios
WE58.40-Z-1003-01C	Blackhawk commercial vehicle frame straightener