JLG Skytrak 6036 Service Manual page 211

BLACK
VOLTMETER
LEAD
Fig. 10.19 Black Voltmeter Lead
8. Connect the black voltmeter lead to the
mounting flange on the starter, Fig. 10.19.
AMMETER
CLAMP
Fig. 10.20 Ammeter Clamp
9. Fasten the ammeter clamp around the positive
battery cable so that the tip of the arrow is
toward the starter, Fig 10.20.
VOLTMETER
AMMETER
LOAD CONTROL
HAND HELD
REMOTE
TACHOMETER
START
BUTTON
Fig. 10.21 Remote Start Button and Hand Held
Tachometer
Model 6036 S/N 9B0499 and Before
10. Connect the leads from the remote starter
button to the Battery and Switch terminals,
Fig. 10.21.
IMPORTANT: Steps 11, 12, and 13 must be done
rapidly. Do not load the battery for more than 15
seconds at one time. After the battery has been
loaded for 15 seconds, let the starter cool for 60
seconds.
11. Actuate the starter and turn the load control
until the voltmeter indicates 11 volts.
12. Look at the ammeter and make a record of the
MA1021
ammeter indication.
13. Use the hand held tachometer, Fig. 10.21, and
check the armature shaft speed. Make a
record of armature shaft speed.
14. Release the remote starter button and turn the
load control to the OFF position.
15. If the current draw and the armature shaft
speed are within the ranges under Specifica-
tions, the starter is good.
16. Low armature shaft speed and high current
draw are indications of too much friction.
Possible causes of too much friction are:
(a) Tight, dirty, or worn bearings.
(b) A bent armature shaft.
MA1031
(c) Loose pole shoes (pole shoes make
(d) A short circuit in the armature coil. Disas-
(e) Damaged field coil. Do the tests de-
IGNITION
17. If the armature does not rotate and the current
SWITCH
draw is high, possible causes are:
TERMINAL
(a) Field terminal making contact with the field
BATTERY
TERMINAL
(b) Damaged field coil. Do the tests de-
(c) Damaged bearings.
18. If the armature does not rotate and the current
draw is zero, possible causes are:
(a) An open field circuit. Disassemble the
MA1041
(b) An open armature coil. Disassemble the
Section 10. Electrical System
contact with the armature).
semble the starter. Use an armature
tester to test the armature. Use the
instructions included with the armature
tester.
scribed in paragraph g.
frame. Inspect the insulators for the field
terminal.
scribed in paragraph g.
starter and inspect field coil connections.
starter and check for burned commutator
10-17