Measure - Meritor MM-96147 Maintenance Manual

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 3
PARALLEL –
CROSSED
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.
Fig. 14.7
(16579)
Printed in USA
These yokes
These yokes
are aligned
are aligned
These yokes
These yokes
are not aligned
are aligned
SPACER
14 Measuring and Recording Driveline Angles
Type 2
CROSSED –
are not aligned
PARALLEL
Type 4
CROSSED –
CROSSED
Fig. 14.8
Copyright Meritor, Inc., 2021
These yokes These yokes
are aligned
These yokes
These yokes
are not aligned
are not aligned
4004053a
MM-96147 / Revised 03-21
Page 79