Service Manual

SERVICE INSTRUCTIONS
DO NOT INSERT OBJECTS LARGER THAN
1/32 INCH DIAMETER INTO SWITCH.
3.9
TEST SWITCH (figs. 3.9 a, 3.9b)
THE
1200 TRIMMER USES A TWO
SPEED SWITCH. Disconnect
all lines to
the switch
(see * in section 2.61). Connect
the tester leads
as shown. There should be
continuity
only when the switch is de-
pressed. Replace any switch that shows
no current flow on either or both sides.
NOTE: The test readings may vary de-
pending on
test equipment used. If all
other tests are good and the trimmer
does not have
a high and low speed,
replace the switch.
Figure 3.9b
3.91
REPLACE SWITCH (fig. 3.91)
Install the new switch by replacing the
wires in their proper terminals (refer
to the trimmer wiring schematic). Cor-
rectly position the switch in the handle
grip. Care should be taken
as not to
pinch any wires when securing the handle
grips.
Figure 3.91
TEST UPPER HARNESS (fig. 4.0)
Insert one probe of a continuity tester
into the switch alongside either harness
lead. Connect the other terminal of the
tester to the proper spade of the harness.
Test both leads for complete circuits.
Figure
4.0
4.01 REPLACE UPPER HARNESS
After removing the wires from the switch
(see * in section 2.61), install the new up-
per wiring harness by placing the wires in
the proper terminals of the switch. Position
the harness in the handle grips. Caution
should be taken
so that the wires are not
pinched when securing the handle grips.
19