Starter Interlock Switch; Control Cable; Brake Bracket Replacement - Tecumseh ECV100 - 120 Technician's Handbook

STARTER INTERLOCK SWITCH

The engine / blade control must close the interlock switch
before the starter can be engaged. To check the interlock
switch, use an ohmmeter or continuity light to perform a
continuity check. Continuity should exist between the
two terminals when the interlock switch button is completely
depressed. No continuity should exist when the button
is released. If the switch fails replace the switch (diag.
10).
To replace the interlock switch, carefully grind the heads
off of the rivets that fasten the interlock switch to the
brake bracket. Remove the rivets from the back side of
brake bracket. Use the self-tapping screw supplied with
the new switch to make threads in the bracket. Install
the interlock switch onto the brake bracket in the proper
position and secure the switch to the brake bracket with
the machine screws supplied. Be careful not to overtighten
the screws as switch breakage can occur (diag. 11).

CONTROL CABLE

Bottom Surface
The control cable conduit must be assembled against
the stop in the bracket. Make sure the bottom of the
lever completely depresses the button on the starter
interlock switch, if equipped, when the control is fully
applied. The cable must provide enough travel so the brake
will contact the flywheel. Some slack should exist in the
cable adjustment to compensate for brake pad wear (diag.
12).
Inside Edge
If replacing the cable conduit screw with a screw other
than a service part replacement, be certain that the screw
length is not too long as to prevent free travel of the lever.
Make sure the button on the starter interlock switch is
completely depressed when the control is fully applied.
The cable must provide enough travel so the brake will
contact the flywheel. Some slack should exist in the cable
adjustment to compensate for brake pad wear (diag. 13).

BRAKE BRACKET REPLACEMENT

The tension must be relieved on the lower brake spring
prior to the removal of the top electric starter bolt, or
damage to the threads in the cylinder block can occur.
When installing a inside edge brake bracket assembly,
be sure the slotted holes in the brake bracket are all the
way down on the fasteners. This will properly align the
brake bracket to the flywheel brake surface (diag. 14).
62
SCREW END MUST
NOT BLOCK LEVER
ACTION
MOUNTING HOLES
Ô
MECHANISM FULL DOWN
BEFORE SCREWS TORQUED
SELF TAPPING
SCREW
MACHINE
SCREWS
STOP
CABLE CLAMP
SCREW
Ô
10
11
12
13
14