2. Remove cap screw and nut.Remove speed
control lever and neutral switch as an assembly.
3.Remove gasket from pump assembly.
The following parts will be needed to disassemble
the piston block.
2ea------------3/8 IDX1-1/4 in .OD flat washers.
1ea------------3/8X 5in.N.C. cap screw
1ea------------3/8 in .N.C.nut
1ea------------1/2 in.Drive Socket with 1-1/8 in.OD
6.Place one of the flat washers over the 3/8X 5 in
cap screw.Install cap screw through spline end of
piston block so that the washer rests on the three
pins.
Gasket
Hydrostatic
pump
Retaining ring
4.Remove the rotating assembly from the housing.
5.If the piston did not come out with the piston
block,remove the pistons along with the spider and
pivot.
NOTE: Disassembling the piston block assembly is
not necessary unless the spring or pins are damaged.
7.Place the socket,then the washer over the end of
the cap screw.
8.Screw on nut and slightly compress the spring
inside the piston block.
9.Using snap ring pliers,remove the internal
retaining ring.
10.Carefully back off nut until spring tension is
relieved.
11.Remove the nut,washer,and cap screw.
4-27
Rotating assembly
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