Component Testing; Component Testing; Fuse; Diode Assemblies - Toro Pro Sweep 07066 Service Manual

Component Testing

For accurate resistance and/or continuity checks, elec-
trically disconnect the component being tested from the
circuit (e.g. unplug the relay wire harness connector be-
fore doing a continuity check on relay).

Fuse

The Pro Sweep uses a single 20 amp fuse for circuit
protection. The fuse holder is located in the wire harness
(Fig. 4). If the fuse is faulty or missing, no electrical pow-
er will be available for sweeper operation.
Testing
Remove fuse from the fuse holder for testing. Fuse
should have continuity between fuse terminals.

Diode Assemblies

Three (3) diode assemblies are used in the Pro Sweep
to provide logic for the control module functions. Diode
D1 provides logic control for the sweeper down function.
Diodes D2 and D3 provide logic control for the sweeper
up function. All of these diodes plug into the wire har-
ness and are located near the offset cylinder.
Diode Testing
The diode (Fig. 5) can be tested using a digital multime-
ter (diode test setting) and the table to the right.
Electrical System
When testing electrical components for continu-
ity with a multimeter (ohms setting), make sure
that power to the circuit has been disconnected.
1
1. Diode
2. Male terminal
Multimeter
Red Lead (+)
on Terminal
Female
Male
Page 4 - - 8
CAUTION
1
Figure 4
1. Fuse holder
Figure 5
3. Female terminal
Multimeter
Black Lead (- -) Continuity
on Terminal
Male YES
Female
2
3
NO
Pro Sweep