O-Ring & Gasket Kit Contents; Overhaul Procedure Service Notes; Disassembly & Reassembly - Kohler K91 Owner's Manual

THREADED CLEVIS
CLEVIS SHAPE
\
VARIES
ROUND-WIRE RETAINING RING
FIG. 21. Hydraulic
Lift
Cylinders
O-RING
&
GASKET KIT CONTENTS
The 101699 O-ring and Gasket
K i t
contains the
following items, and is used on cylinders
A & B
(Fig. 21):
ITEM
QTY.
DESCRIPTION
1 2 O-ring Piston and Guide Bushing
O.D.
2 1
O-ring, Guide Bushing I.D.
3
1
Rod Wiper, Guide Bushing
4
2 Gasket, Piston
5
1 Snap Ring, Cylinder
6
1 O-ring, Piston Rod*
FIG. 22A.
Remove Clevis
&
Snap
Ring
.
WORK POINTED TOOL
UNDER RETAINING RING
TO EASE REMOVAL
RETAINING RIN
1. TAP GUIDE BUSHING DOWN
INTO CYLINDER 114 in.
FIG. 22B.
Remove Retaining Ring
*Removeable
Piston Construction.
The 109088 Service Kit contains the following
items, and is used on cylinder
C
(Fig. 21):
3.
Thread the clevis partially onto the piston rod,
if
applicable. Tap the cylinder off the rod
bushing and piston with a soft-faced mallet.
ITEM
QTY.
DESCRIPTION
1
1
O-ring, Piston Rod
2
1
O-ring, Guide Bushing I.D.
3
1
Back-up Washer, (Wiper Side of
4
1
Wiper, Guide Bushing
5
1 O-ring, Guide Bushing
O.D.
6 1
Rectangular Section Seal, Piston
7 1 O-ring, Piston
8 1 Retaining Ring
No other repair parts are available.
The lift
cylinder
must be replaced
if
the service
kit
fails to solve the
problem.
OVERHAUL PROCEDURE
Service Notes
Guide Bushing O-ring)
1. Use a clean, dirt-free work surface and clean
solvent to prevent system contamination.
2.
lubricate all internal parts with oil when
reassembling.
Disassembly
&
Reassembly
1.
2.
4. Cylinders serviced with 101699 Kit are shown
in Fig. 24. Cylinders serviced with 109088 Kit
are shown in Fig.
25
and 26. Remove and dis-
card all O-rings and seals. Straighten out a
paper clip and form a hook in one end to
remove O-rings from grooves.
FlG. 23.
Cylinder Removal
Loosen the setscrew and remove the clevis
(threaded type). The piston rod may be held
with locking pliers just behind the clevis, if
5.
Clean and carefully inspect all parts. In gen-
eral, any deep scratches or scoring of the piston
necessary. and i t s bore, o r of the piston rod and the
I.D.
Remove the snap ring or retaining ring from of the rod bushing will make the cylinder
the cylinder (Fig. 22A or 22B). unserviceable.
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