Tuff Torq K92 - Hydrostatic Transmission Motor Disassembly and Assembly (2 WD)

Tuff Torq K92 Hydrostatic Transaxle
Hydrostatic Transmission Motor Disassembly and Assembly (2WD)
A - Cap Screw (2
pieces) B - Seal Cap
C - Snap Ring
D - Snap Ring
E - Washer
F - Ball Bearing
G - Motor Case
H - Locating Sleeve (2
used) I - Motor Shaft
J - Center Valve Block Assembly
K - Locating Pin
L - Motor Valve Plate
M - Snap Ring
N - Washer
O - Spring
P - Cylinder Block
Q - Shim
R - Piston Spring
Fig. 55, Hydrostatic Transmission Motor Disassembly (2WD)
S - Piston
T - Gasket
U - Thick Thrust Plate
V - Thrust Bearing
W- Bushing
X - Thin Thrust Plate
IMPORTANT: Avoid damage! Do not drop or damage
mo-tor valve plate when removing motor assembly. Do
not nick or scratch lapped or machined surfaces of the
valve plate or cylinder block components. The slightest
damage can cause poor performance.
1. Remove two cap screws (A). (Fig. 55)
IMPORTANT: Avoid damage! Keep pistons (S) matched
with bore of cylinder block (P). Do not interchange motor
pistons and valve plate (L) with pump pistons and valve
plate. Pistons and cylinder blocks are a matched set.
2. Remove cylinder block assembly.
NOTE: Motor rotating components must be replaced
as a set.
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