71
Disassembly/Inspection and Service
66 690 14 Rev. A
KohlerEngines.com
Remove Oil Sentry™
NOTE: Unless Oil Sentry
™
switch is damaged or
malfunctioning, disassembly from breather cover
is unnecessary.
Disconnect wire lead from Oil Sentry
™
switch, and
remove switch from breather cover.
Remove Lower Drive Pulley and Fan Belt
1. Remove four screws attaching lower drive pulley
assembly to pulley adapter and
fl
ywheel.
2. Remove pulley halves with spacer shims from
adapter, and take fan belt o
ff
upper pulley/fan
assembly. Note number of shims between pulley
halves, and on front side of pulley, especially if same
belt will be reinstalled.
Remove Fan Assembly, Mounting Bracket, and Fan
Shaft
NOTE: Further disassembly of fan/hub and pulley
assembly is not necessary unless a problem
exists. If disassembly is performed, note
assembly order and position of parts.
1. Remove front nut and washer securing fan assembly
to fan shaft. Remove fan and pulley assembly from
upper mounting bracket.
Fan Components
L
J
D
B
A
E
F
I
K
G
G
J
C
H
A
Oil Sentry
™
B
Fan Mounting
Bracket
C
Fan Shaft
D
Fan
E
Fan Belt
F
Fan Pulley
G
Ball Bearing
H
Retainer Ring
I
Bearing Carrier
J
Pulley Half
K
Spacer Shims
L
Pulley Adapter
2. Remove screws and take o
ff
mounting bracket with
fan shaft attached.
3. Fan shaft may be removed from mounting bracket,
by removing rear nut, if individual servicing of either
part is required.
Inspection and Service
Cooling fan assembly consists of a fan attached to a
v-pulley and bearing carrier (hub), rotating on a dual
ball-bearing fan shaft (arbor). Assembly is mounted with
a bracket to intake manifold and driven via a split pulley
o
ff
fl
ywheel.
Inspect components carefully for signs of wear or
damage.
1. Inspect fan to make sure blades are in good
condition and free of any cracks, nicks, or damage.
Area around fan mounting holes must also be free of
any cracks or damage.
2. Fan and hub assembly, when mounted to center
arbor shaft, must rotate smoothly without noticeable
bearing play, wobble, or binding.
3. Check v-belt for excessive wear, cracking or
damage. If proper belt tension cannot be obtained,
or condition of belt is suspect; replace it with Kohler
Part No. 66 203 02-S. Do not use a substitute belt.
Содержание Aegis ELH775
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