Check Caster And Assign To Tabular Value - Ar40.20-D-0322-03B

MODEL 906 with REAR AXLE 741.412/421/428 without CODE C15 (Vehicle lowering) without CODE ZG1 (Engageable all-wheel drive) without CODE ZG2 (Permanent all-wheel drive) without CODE ZG3 (Engageable all-wheel drive with gear reduction) without CODE ZG4 (Permanent all-wheel drive with gear reduction)

MODEL 906.15/25/65 without CODE ZG1 (Engageable all-wheel drive) without CODE ZG2 (Permanent all-wheel drive) without CODE ZG3 (Engageable all-wheel drive with gear reduction) without CODE ZG4 (Permanent all-wheel drive with gear reduction) without CODE ZU8 (National version for USA)

MODEL 906.15/65 with CODE A50 (Front axle reinforced) with CODE RH9 (Super-single tyres, 285/65 R16 C) with CODE ZU8 (National version for USA) without CODE ZG1 (Engageable all-wheel drive) without CODE ZG2 (Permanent all-wheel drive) without CODE ZG3 (Engageable all-wheel drive with gear reduction) without CODE ZG4 (Permanent all-wheel drive with gear reduction)

Courtesy of MERCEDES-BENZ USA

Model 906 with rear axle 741.412/421/428, wheelbase 3250 mm

Courtesy of MERCEDES-BENZ USA

Model 906 with rear axle 741.412/421/428, wheelbase 3665 mm

Courtesy of MERCEDES-BENZ USA

Model 906 with rear axle 741.412/421/428, wheelbase 4325 mm

Tolerance for caster: ±30'

Difference, left to right: 30'

Procedure:

Measure front axle level and rear axle level on one side of the vehicle and obtain the specified value of caster (measured via 20° wheel angle) from the table.
The caster cannot be adjusted but it must be checked to ensure the chassis geometry is correct.
Measure actual caster as part of axle alignment and compare with specified values.
Compare the caster values determined on both sides of the vehicle and establish whether the permissible tolerance has been maintained.

Example:

Level of front axle (FA) 264 mm and level of rear axle (RA) 451 mm = caster value of front axle 03° 32'.