Tecumseh HH100 Handbook page 59

To test ammeter remove right side panel. Remove
brown wire from "On/Off" switch. Use a volt/ohm/
millimeter. Attach one test lead to the terminal the
brown wire was removed from, attach other test lead
to positive terminal of start switches. Set tester to
the ampere scale and start engine. Set throttle control
at full throttle and observe meter. If meter registers
a charge, system is okay and meter on panel is
inoperative. This test can also be made using a good
ammeter. Attach a wire to each terminal of the ammeter
and hookup as described above. No reading on either
meter would indicate a problem with the regulator-
rectifier and/or alternator.
NO. 16 WIRE
ALTERNATOR
CONNECTOR
IGNITION
BROWN
GROUND
ON POSITION
BROWN
AMMETER
ALLIGATOR CLIPS
REGULATOR
RECTIFIER
SWITCH
AMP
NO. 6 WIRE
FROM BATTERY
ELECTRICAL CONTROL PANEL SERVICE PART
NO. 730198. The following test procedures will be
limited to the control panel. Test procedures for electrical
components external to this control panel will be
found in their respective areas. Before attempting
to locate an apparent defect in the control panel
switches insure all connections between control panel,
starter and battery are secure and free from corrosion
and wire or insulation breaks. Battery should be fully
charged or be at a minimum of 75% charge. Engine
ignition spark should be checked for an intense spark.
DISCONNECT FROM BATTERY
ON-OFF TOGGLE SWITCH
(GREEN
LEAD)
CONNECTOR
BATTERY POWERED
CONTINUITY TESTER
CAUTION - Remove the control panel from the engine
bracket then remove (+) lead from battery before
attempting any of the following tests.
ON-OFF TOGGLE SWITCH-IGNITION GROUND
CIRCUIT. Note: One of several continuity testers
may be used. For the following tests a battery powered
continuity tester is used.
When disconnecting spade connectors from terminals
use care not to damage wire connections or switch
terminals. The use of a pair of needlenosed pliers
is recommended.
A. Test for switch continuity of magneto cutout circuit.
1. Disconnect the two green leads by pulling spade
connectors off of terminals.
2. Place continuity tester probes on each switch
terminal.
STARTER SWITCH
ON-OFF
TOGGLE SWITCH
STARTER
SWITCH
FUSE
GROUND
(GREEN
LEAD)
DISCONNECT FROM STARTER
57