Gradall 534B (9103-1390) Service Manual - Manual (Page 214)

l Insert the selected shim. l Measure the preload on the upper diameter l With a dial gauge, check the backlash bet-
l Install, the differential case of the bearing cups. The preload must be ac- ween pinion and ring gear: This backlash
l Install the nut. cording to specification STB 1-110 after must be according to specification STB 1-
l Install the bearing caps and the bolts tightening of the differential nut. 110.
l Secure them according to specification l Install the nut lock according to
STC 2-204. specification STB 1-110, after having secured
l Torque them according to specification it, according to specification STC 2-204
STB 1-110.
When servicing the differential it is important that the gear set be mounted correctly and the tooth contact be as specified in this manual.
Incorrect differential mounting and/or tooth contact will severly reduce the life of the gear ser.
Proper tooth contact is illustrated above.
Two adjustments affect the tooth contact. One affects the tooth contact along the length of the tooth (longitudinal). The other affects the
tooth height (profile). These two adjustments must be considered separately to obtain correct tooth contact.
DIFFERENTIAL CARRIERS 300 - 500 - 1000
ADJUSTMENT OF THE GEAR SET