SPECIAL TOOLS
The
tools listed below are necessary for servicing
the genset. See the Onan Tool Catalog.
Engine Tools
Torque wrench: 0-75 lbs-ft (0-1
00
N-m)
Hole gauge: 0.300-0.400 inch (5-1 0 mm)
Outside micrometer set: 0-4 inch (0-1
00
mm)
Telescoping gauge set: up
to
4 inch
(1
00
mm)
Feeler gauge
Plasti-Gage bearing clearance guide
Spark plug gap gauge
Oil pressure gauge: 0-30 psi (0-200 kPa)
Fuel pressure gauge (for gasoline): 0-10 psi
(0-75 kPa)
Manometer (for LPG):
14
inch (350
mm)
WC
Inclined Manometer (for LPG): 1 inch (25
mm)
we range with 0.01 inch (0.2 mm) we di-
visions
Cylinder compression tester
Flywheel puller
Crankshaft gear puller ring, bolts and puller
(or special shoulder bolts and flywheel
puller)
Snap ring pliers
Combination main and
cam
bearing remover
Combination main and
cam
bearing driver
Oil seal loader and driver
Cylinder ridge reamer
Piston ring spreader
Piston groove cleaner
Piston ring compressor
Cylinder hone
Valve spring compressor
Valve lock replacer
5-2
Valve seat cutter kit
Valve guide driver
Slide
hammer
Lead
or
dead-blow
hammer
Generator and Control Tools
Rotor removal tool (headless bolt)
Battery hydrometer
Frequency meter
Digital multi-meter:
AC
and DC Voltage,
Ohms
and Diode
Check
Loadtestpanelandleads
Voltage Regulator Testor and Adaptor (1-Ph)
Rotor and Stator Testor and Adaptor
REMOVING THE GENSET
Some
service procedures will require that the gen-
set be removed from
the
vehicle.
The
genset is nor-
mally mounted in a special compartment on
the
ve-
hicle floor. Because installations vary, it is not possi-
ble
to
describe a specific removal procedure. Con-
tact
the
vehicle manufacturer
or
installer if the best
way
to
remove
the
genset is not obvious.
Disconnections at the Genset
1.
First disconnect the negative (-) battery cable
from the battery and then disconnect the bat-
tery cables from the genset.
IAWARNINGI Sparks
and
high
current
could
cause fire
and
other
damage
to
the battery,
battery cables
and
vehicle
if
the loose ends
of
cables connected to the battery touch.
Always
disconnect
the negative
(-)
battery
cable from the battery before disconnect-
ing
the battery cables from the genset.
2. Disconnect
the
remote control wiring harness
connector at the genset.
3.
Disconnect the generator output wiring and
conduit from the povver distribution panel
or
box
on
the all wires to make re-
connections easier.
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