Service Manual

15Tuff Torq Model K61A Hydrostatic Transaxle Transaxle Disassembly and Inspection
Center Case
Take out the two knock pins, plug, and packing (o-ring)
(early models), if required. If the shaft bushings require
replacement, remove them.
Figure 47
Inspect the center case by running your fingernail over its
surface. Replace the center case and cylinder blocks if
fingernail catches on scratches.
Figure 48
Figure 49
Motor Shaft
Remove the cylinder block assembly from the motor
shaft.
Inspect the five cylinder bores for burrs or scoring.
Figure 50
Inspect the five pistons and all parts of the cylinder block
assembly for wear or damage.
Replace the center case and both cylinder block
assemblies if any cylinder block assembly parts are
damaged.
Figure 51
Remove the spring and snap ring from the motor shaft.
Remove the thrust bearing and housing from the motor
shaft and inspect them for wear or damage. Replace if
necessary.
Figure 52