Disconnect the tubing from the rear of
Remove flywheel (12).
Remove alternator stator (11).
Remove the hardware that retains the
Remove governor (23).
u - c l a m p . Push the gage out of the
Remove the gear cover screws and
Replace the defective gage.
(f) Drive out two dowel pins at the right
side of the gear cover.
(g) Remove the gear cover and gear cover
( 1 ) Tires and Wheels. (See figure 4-9.) To
remove a tire and wheel, proceed as
( 1 5 ) Cover Plate. To remove cover plate (20,
figure 4-8), proceed as follows:
(a) Jack up the corner of the test stand to
(a) Remove the screws and lockwashers
raise the tire off the ground.
that attach the cover plate to the
(b) Remove lug nuts (1) and washers (2).
(c) Remove tire (4) with assembled tube
(b) Remove the cover plate and cover
and wheel halves from the test stand.
(c) Clean cover plate, replace it if it is
damaged, and replace the cover plate
At this point, remove valve cap (6) and
stem (7) from the tire that you are re-
(16) Fuel Tank. To remove fuel tank (19, fig-
moving. Make sure that tube (3) is
ure 4-8), proceed as follows:
completely deflated before proceeding
with the next step.
(a) Remove all hydraulic system compo-
nents around the fuel tank.
(d) Remove nuts (8), washers (9), and
(b) Make sure that there is no gasoline in
the fuel tank.
(c) Disconnect the fuel line from the fuel
(e) Using a tire iron or other prying tool,
separate two wheel halves (5 and 11).
Remove the tire and deflated tube.
(d) Remove the hardware that attaches the
(f) Replace the defective tire.
fuel tank to test stand frame (18).
(e) Remove the fuel tank.
( 2 ) Brake Drum. To remove the brake drum
(f) Clean and repair, or replace a
from a wheel, proceed as follows:
damaged fuel tank as needed.
Remove the tire and wheel from the
( 1 7 ) Crankcase Assembly. To remove crank-
axle on which the brake drum you
case assembly (22, figure 4-8), proceed
want to remove is located.
Remove the cotter pin from the
castellated locknut that attaches the
brake drum to the axle.
Remove ignition wires.
Remove the castellated locknut,
Remove spark plugs.
washer, and bearing from the axle.
Remove the magneto.
Slide the brake drum off over the
Remove the oil filter.
axle spindle and brake assembly.
Remove the fuel strainer.
Replace the defective brake drum.
Remove the fuel pump.
Remove the carburetor.
Remove the governor.
4-5. DETAILED REPAIR INSTRUCTIONS.
Remove the two cylinder heads and
a . Electrical System.
(k) Remove the flywheel.
(1) Remove the alternator.
(m) Remove the engine gear cover.
(1) Ignition Wire Assembly. To repair the
(n) Remove the cover plate.
ignition wire assembly, proceed as
(o) Remove the engine mounting bolts.
Lift the crankcase assembly out of the
test stand frame.
(a) Replace damaged end connectors.
(p) Clean and repair, or replace the
(b) Using insulating tape, wrap all insula-
crankcase assembly as necessary.
tion breaks. Use at least four layers
of tape over the insulation breaks.
(18) Engine Oil Pressure Gage. To remove
(c) If an ignition wire is beyond repair,
ENGINE OIL PRESSURE gage (2, figure
2-1), proceed as follows: