Measuring vehicle frame using frame measuring gages

AR31.30-W-0040A

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