Bad Boy MZ 42" Owner's, Service & Parts Manual - Section 4: Electrical System
SECTION 4: ELECTRICAL SYSTEM
This mower is equipped with two protective fuses: a 25
amp main fuse (pictured to the right) and a 10 amp clutch
fuse (blade engagement). The main fuse is located on the
left side of the unit; towards the front of the engine. The
clutch fuse is located just underneath the operator’s
console. A blown fuse usually indicates a problem within
the electrical system or an electrical component. Never
replace a fuse with one of a higher amperage rating or
‘bypass’ a fuse in any way. Doing so creates a significant
fire hazard and can cause severe damage to the mower’s
electrical components. If a fuse is repeatedly blowing,
contact your Bad Boy dealer.
On most models, the red wire coming out of the engine is
the charging wire from the alternator. Check for 13.6 - 14.2
volts dc at this wire with engine at full throttle.
Check the condition and connection of the relays located
under the control panel. Ensure that they are clean and
connected. Make sure that wire terminal ends have not
been pushed out of the relay block.
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This mower is equipped with two protective fuses: a
25 amp main fuse (pictured to the right) and a 10
amp clutch fuse (blade engagement). The main fuse
is located on
the left side of the unit; towards the front of the
engine. The clutch fuse is located just
underneath the control panel.
In order to access the clutch fuse and the relays
you will need to take off the control panel by
removing four socket head screws using a 1/8"
hex wrench. This can be seen in the images on
the right. Once you remove the screws remove
the control panel and you can access the clutch
fuse and the relay bank.
A blown fuse usually indicates a problem within the
electrical system or an electrical component. Never
replace a fuse with one of a higher amperage rating
or ‘bypass’ a fuse in any way. Doing so creates a
significant fire hazard and can cause severe damage
to the mower’s electrical components. If a fuse is
repeatedly blowing, contact your Bad Boy dealer.
On most models, the red wire coming out of the
engine is the charging wire from the alternator.
Check for 13.6 - 14.2 volts dc at this wire with engine
at full throttle.