MAINTENANCE MANUAL - Meritor
MAINTENANCE MANUAL - Meritor
MAINTENANCE MANUAL - Meritor
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14. Adjust the shift fork for the inter-axle differential<br />
lock. The movement of the shift fork<br />
is controlled by the adjusting screw of the<br />
locking mechanism.<br />
A. Loosen the jam nut on the adjusting screw.<br />
Loosen the adjusting screw so that the<br />
screw does not touch the shift of the drive<br />
mechanism. Figure 5.106.<br />
LOOSEN THE JAM NUT AND<br />
ADJUSTING SCREW.<br />
B. Apply and hold 60 psi (413 kPa) of air pressure<br />
to the shift cylinder so that the shift collar<br />
engages the splines in the inter-axle differential<br />
case.<br />
C. Verify that the adjusting screw does not<br />
touch the shift shaft when the shift collar<br />
engages the inter-axle differential case.<br />
D. Tighten the adjusting screw until the tip of the<br />
screw touches the end of the shift shaft. Release<br />
the air pressure<br />
D. When the screw touches the shaft, tighten<br />
the adjusting screw an additional one turn.<br />
Apply air pressure, then tighten the jam nut.<br />
Figure 5.107.<br />
<strong>MAINTENANCE</strong> <strong>MANUAL</strong><br />
SHIFT SHAFT<br />
Figure 5.106<br />
TIGHTEN THE ADJUSTING<br />
SCREW ONE TURN AFTER THE<br />
SCREW TOUCHES THE END OF<br />
THE SHOFT.<br />
Assembly and Installation<br />
SHIFT SHAFT<br />
APPLY 60 PSI (413 kpa)<br />
OF AIR PRESSURE<br />
HERE.<br />
Figure 5.107<br />
F. Disengage the inter-axle differential lock by<br />
holding the input fork or flange and rotating<br />
the output fork or flange. The output fork or<br />
flange should rotate with less than 50 lb-ft<br />
(67 Nm) of torque applied. .<br />
G. Apply and hold 60 psi (413 kPa) of air<br />
pressure to the shift cylinder mechanism<br />
to verify that the shift collar engages the<br />
splines in the inter-axle differential case.<br />
When the input fork or flange is rotated,<br />
the output fork or flange must rotate. Release<br />
the air pressure.<br />
H. Apply a rust prevention oil, for example, as<br />
<strong>Meritor</strong> part number 1199-U-1113 or equivalent<br />
to the inlet of the air cylinder.<br />
15. Connect the vehicle driveshafts to the input<br />
and the thru forks or flanges.<br />
16. Connect the air lines to the inter-axle differential<br />
air cylinder and, if used the main differential<br />
lock cylinder.<br />
17. On axles with a main differential lock, connect<br />
the electrical connector of the sensor<br />
unit. Verify that the main differential lock<br />
is disengaged.<br />
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