TM 5-3805-254-20-1
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. ENGINE FAILS TO CRANK - CONTINUED.
WARNING
Although KEY SWITCH must be on and battery ground cable connected to test electrical circuit
voltage, turn off KEY SWITCH and disconnect battery ground cable before doing resistance tests
or replacing parts. This will keep you from getting shocked and prevent damage to parts and
equipment.
Step 10
Check ground strap (1) from starter motor (2) to frame rail (3) for loose, corroded, or broken
condition.
a
If ground strap (1) is loose at starter motor (2), tighten nut (4) using 3/4-inch box-end
wrench.
b
If ground strap (1) is loose at frame rail (3), tighten screw (5) and nut (6) using 9/16-
inch, 112-inch drive socket, ratchet handle, and 9/16-inch box-end wrench.
c
If ground strap (1) is corroded at starter motor (2), unscrew and take nut (4) and
ground strap (1) off ground stud (7) using 3/4-inch box-end wrench. Clean ground
stud (7) and ground strap (1) using wire brush. Place ground strap (1) on ground stud
(7) and screw on and tighten nut (4) using 3/4-inch box-end wrench.
d
If ground strap (1) is corroded at frame rail (3), unscrew and take off screw (5),
ground strap (1) and nut (6) using 9/16-inch, 1/2inch drive socket, ratchet handle, and
9/16-inch box-end wrench.Clean ground strap (1) and frame rail (3) mating surface
using wire brush. Place screw (5) and ground strap (1) in position and screw on and
tighten nut (6) using 9/16-inch, 1/2-inch drive socket, ratchet handle and 9116-inch
box-end wrench.
e
If ground strap (1) is broken, replace (page 2-896).
f
If ground strap (1) is not loose, corroded, or broken, go to step 11.
2-92
