Kohler K91 Owner's Manual page 265

Parts available only through Authorized Dealers.
When ordering parts always list Part
No.
and Description.
ISpecifications subject t o change without
notice.)
ITEM PART
NO. NO.
DESCRIPTION
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
5998
909000
5996
920229
920078
933 196
7266
7268
971
1
7267
6444
970 1
971
0
7054
971
0
7264
7052
705
1
7050
70 A9
1
1
1
1
971017
7752
7753
7754
7755
7756
943462
9733 10
7877
Plate Tension
Screw Round Head #8-32 x
Cam
Washer
Lockwasher # 8
Roll Pin
3/16
x
2
VaIve
Ring Back Up
"0"
Ring
Assembly Dampening Valve (with
"0"
Rings)
"0"
Ring
"0"
Ring
Assembly Piston
&
Sleeve (Matched Assembly)
" 0 "
Ring
Spring Relief Valve
Spring Relief Valve
Seat Spring
Cone Relief Valve
Sleeve
"0"
Ring
Plug
Spring
Check
Valve
Valve
Check
Valve
Spring Charge Pump Relief Valve
Cone Relief Valve
Plug Pipe Hex Socket 1/2-14
"0"
Ring
Sea
I
Plug
REQ'D.
NO.
2
2
1
2
2
1
1
1
2
1
2
2
2
2
2
2
2
2
2
2
2
7
2
2
1
1
1
7
1
PUMP SHAFT SEAL REPLACEMENT
Replacement of the pump shaft seal (Fig. 91), i s
accomplished without removing the Hydrogear as-
sembly from the tractor.
Raise the seat. Remove the fan guard and fan on
1965, 1966, and 1967 models. On 1968 and 1969
models, remove the
belt guard. To do this it will
also
be
necessary to remove the
R.H.
foot rest on
these models.
Loosen the belt ,tension by setting the parking
brake, and remove the belt from
the
shaft pulley.
Remove the pulley and Woodruff key from the input
shaft.
NOTE:
It
is
extremely important not to damage
the shaft or the soft aluminum housing. The follow-
ing steps should
be
done very carefully.
Slide
a small hook tool or screw driver along the
shaft into the lip seal. Tip the tool until it contacts
the outer metal edge of the seal and pry outward
gently. Change position of the tool and repeat the
process until the seal has been worked out of the
housing. Discard the seal.
Inspect 'the shaft and polish out any nicks or burrs
that could cut or damage a new seal. Do not let
any particles enter the pump.
Coat the sealing lip with automatic transmission
fluid and slide the seal over the shaft. Align the seal
to the aluminum housing. A thin coat of gasket
shellac on' the seal O.D. will aid in sealing the steel
seal to the pump housing.
Place a tool approximately the size of the seal
O.D. over the metal face of the seal (the input pulley
hub can be used) and press the seal into the housing
until the seal is flush with the edge of the housing.
Check
oil
level and replenish as necessary.
Align and install the pulley, belt, and fan
if
so
equipped. Install the belt guard or fan guard de-
pending on model.
Test operation and
check
for leaks.
END
OF HYDROGEAR SECTION