28
ZT-5400 Powertrain
PUMP BLOCK ASSEMBLY
50
85
88
87
82
86
swasHplaTe
figure 20, swashplate
figure 21, pump block assembly
Refer to Figure 20, 21
disassembly
1 . Remove all external items previously dis-
cussed in their recommended order .
2 . Remove the trunnion arm (50), swashplate,
the thrust bearing (85) and the pump block
assembly .
Inspection
1 . Inspect the races of the thrust bearing (85)
for wear or damage .
2 . Inspect the pistons (86) and washers (82) of
the pump block assembly for scratches and
or wear . Replace the pump block assembly
if necessary .
3 . Inspect for scratches on the machined sur-
faces of the swashplate (50) .
4 . Inspect the pump cylinder block (88) .
assembly
1 . Reassemble all parts in the reverse order
of disassembly .
2 . Apply a light coating of oil to all running
surfaces .
3 . Reassemble the items of the pump block
assembly .
place the thrust bearing as-
sembly (85) so the thick race contacts
the pump block pistons.
4 . Realign the swashplate and pump block
assembly with the center section .
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