758
Model Code Page
1. 11. 1998
6000--8750
26440
44. Quick---shift gear, reverse shuttle
and 4WD clutch
Working order
Table below shows working orders for certain repair work. Detailed repair instructions can be found in instructions which start on
next page.
Drain trans -
mission oil
Remove floor
hatch
Split tractor
between fuel
t a n k --- g e a r b o x
Remove
quick---shift
gear
Remove rever-
se shuttle
Disassemble
gearbox
Changing 2---step
quick---shift gear
solenoid valve.
1
Changing solenoid
valves/proportional
valves for 3---step
quick---shift gear.
Solenoid valves
are placed on
the separate
valve blocks
and oil draining
is not necessary
Changing 2---step
and3---stepquick---
shift gear front oil
seals
1 2
Changing oil seal
inside the quick---
shift gear input shaft
front end
1 2
Changing piston
ring type oil seals in
3 --- st ep q u ic k --- sh if t
gear
1 2 (in addition,
disconnect oil
pipes from gear
housing and
remove the seal
housing in the
front part of the
gear housing.
Reconditioning
quick---shift gear
1 2 3
Repairing mechani-
cal reverse shuttle
synchromesh unit
1 2 3 4
Changing mechani-
cal reverse shuttle
selector fork
1 2 3 4
Changing mechani-
cal reverse shuttle
selector lever
1 2 3 4 5
Reconditioning Hi-
Tech Shuttle multi---
disc clutches
1 2 3 4
Reconditioning
4WD clutch
1 2 3 4
Changing 4WD out-
put shaft oil seal
1
Note! The quick---shift gear/reverse shuttle can be removed in two different ways:
--- split the tractor between gearbox---fuel tank and roll the front frame away from the gearbox (cab is attached to the rear frame):
see instruction 441 1A
--- split the tractor between gearbox---fuel tank and roll the rear frame away from the fuel tank (cab attached to the front frame): see
instruction 423 1A.
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