
Copyright Meritor, Inc., 2021
MM-96147 / Revised 03-21
Page 79
(16579)
Printed in USA
14 Measuring and Recording Driveline Angles
Positive (+) and Negative (−) Angle Designations
You must fi ll in driveline angle measurements on the Data
Gathering Worksheet as POSITIVE (+) and NEGATIVE (−)
dimensions.
Before you measure a component, go to the side of the vehicle and
look at the driveline. If the FRONT of the component is HIGHER than
the REAR of the component, the dimension will be POSITIVE (+).
If the FRONT of the component is LOWER than the REAR of
thecomponent, the dimension will be NEGATIVE (−). Figure 14.6.
Type 1
PARALLEL –
PARALLEL
Type 2
CROSSED –
PARALLEL
Type 3
PARALLEL –
CROSSED
Type 4
CROSSED –
CROSSED
These yokes
are aligned
These yokes
are aligned
These yokes
are not aligned
These yokes
are aligned
These yokes
are aligned
These yokes
are not aligned
These yokes
are not aligned
These yokes
are not aligned
4004053a
Fig. 14.6
Measure
Main Driveline Angles
Measure the Transmission Output Yoke Angle
Place the inclinometer or spirit level protractor on a spacer and on
the transmission output yoke to measure the transmission output
yoke angle. If a measurement is diffi cult to obtain on the yoke,
you can measure from a fl at transmission surface, including the
countershaft bearing covers or the PTO cover. Figure 14.7 and
Figure 14.8.
SPACER
Fig. 14.7
Fig. 14.8