Troy-Bilt 8 HP - Manual (Page 64)

CHECK OR TEST
(C heck or test in sequence show n
until problem is resolved.)
-
^
///“^
Throttle lever in “S TA R T” position X 14
W heels/Tines/P TO D rive Lever in
“N EU TR A L” position X 9
Forw ard Interlock W ire H arness
connector securely m ated X X 61
Forw ard Interlock Levers not being
squeezed prior to shifting W heels/
Tines/P TO D rive Lever to
“FO R W A R D ” position X 10
V isually inspect for bare, broken
or disconnected w ires X X 61
C heck handlebar w ire harness X X 62
C heck transm ission w ire harness X X 63
c*
if ^ /^
■p ff* >
Checking the Handlebar Wiring
Harness
The purpose of this test is to see
that there is a continuous circuit
betw een the term inals on the han­
dlebar w iring harness interlock
plug and the sw itches and w ires
inside the handlebars.
1. To perform this test you w ill
need a continuity m eter (volt-ohm
m ultitester) or a sim ple battery-
pow ered continuity tester, such as
the one show n on page 59 of this
M anual.
2. A fter unplugging the w iring har­
ness connector, place the leads
from your tester into the tw o term i­
nal holes in the interlock plug (see
P hoto 6-77). The tester bulb should
glow . N ow m om entarily squeeze
«iv.. r->
6-77: Test continuity between terminals.
each of the Forw ard Interlock
Levers, one at a tim e. The bulb
should go out as either lever is
squeezed.
If the bulb did not glow during
this test, it indicates a possible
broken w ire, or a w ire that has
pulled loose from one of the
sw itches in the handlebars.
3. R em ove one sw itch at a tim e
(see “S w itch R em oval” instructions
further on), and check the tw o
w ires on each sw itch for a tight
connection. (The w ires m ay be
attached to either term inal on the
sw itch. H ow ever, the longer (red)
w ire should be attached to the top
of the sw itch.) A fter checking the
connections, check for continuity
betw een the tw o term inal holes In
the interlock plug as described in
S tep 2 above. W hen m aking this
test, the tiny sw itch plunger (show n
in Photo 6-78) on both sw itches
m ust be depressed either w ith your
finger or by the interlock lever.
4. If the bulb still doesn’t glow , you
should rem ove the w ires from the
sw itch. Then touch the leads from
your tester to the tw o term inals on
the sw itch and press the tiny
sw itch plunger (see P hoto 6-78).
4
y-r
PLUNGER
6-78: Test switch terminals while depressing switch plunger.
62