Gradall 534B (9020-7317) Service Manual - Manual (Page 162)

The instructions contained herein cover the disassem-
bly and reassembly of the transmission in a sequence
that would normally be followed after the unit has
been removed from the machine and is to be com-
pletely overhauled. It must also be understood that
this is a basic 18000 transmission with many options.
All 18000 transmissions are very similar to trouble
shoot, disassemble, repair, and reassemble.
Figure 1
Side view of the 18000 inline output 2 or 3 speed
transmission. The transmission being disassembled is
a 3 speed.
Figure 2
Loosen filter assembly.
MAINTENANCE AND SERVICE
DISASSEMBLY
CAUTION: Cleanliness is of extreme importance and
an absolute must in the repair and overhaul of this
unit. Before attempting any repairs, the exterior of
the unit must be thoroughly cleaned to prevent the
possibility of dirt and foreign matter entering the
mechanism.
Figure 3
It is recommended a small pan be used to catch the
oil left in the filter element. Remove filter assembly.
Figure 4
Remove pressure regulating valve and charging
pump bolts and stud nuts.
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