Electrical System; Electric Clutch; Burnishing The Electric Clutch; Access To Engine And Hydraulic Pumps - HUSTLER Super Mini Z Parts Manual

multi-purpose grease.
3. Grease the pump idler per the Maintenance Schedule. Use SAE
multi-purpose grease.
4. Grease the two deck pusher arm pivots per the Maintenance
Schedule. Use SAE multi-purpose grease.

Electrical system

The electrical system is a 12 volt, negative ground. Recommended
battery size is a garden tractor BCI group U1R with 225 or better cranking
AMP rating. A maintenance-free battery is recommended. Otherwise,
follow battery manufacturer's maintenance, safety, storing and charging
specifications.
The battery is located under the seat. Fig. 11-3
WARNING: Battery posts, terminals, and related accessories
contain lead and lead compounds, chemicals known to cause
cancer and reproductive harm. Wash hands after handling.
WARNING: Avoid skin contact with battery acid.
Always wear eye protection when checking the battery, acid can
cause serious injury to skin and eyes. If contact occurs, flush area
with clean water and call physician immediately. Acid will also
damage clothing.
Do not allow open flame near the battery when charging.
Hydrogen gas forms inside the battery. This gas is both toxic and
flammable and may cause an explosion if exposed to flame.
Always remove the negative ground first and replace it last.
Do not overfill battery.
Electrolyte may overflow and damage paint, wiring or structure.
When cleaning the battery, use soap and water. Be careful not to
get soap and water into the battery. Use soda mixed in water to
clean corrosion off the terminals.
WARNING: Shorts caused by battery terminals or metal tools
touching metal tractor components can cause sparks. Sparks can
cause a battery gas explosion which will result in personal injury.
Prevent the battery terminals from touching any metal tractor
parts when removing or installing the battery.
Do not allow metal tools to short between the battery terminals
and metal tractor parts.
WARNING: Incorrect battery cable routing could cause damage
to the tractor and battery cables. This can cause sparks which can
cause a battery gas explosion which will result in personal injury.
Always disconnect the negative (black) battery cable before
disconnecting the positive (red) cable.
Common circuit failures are usually caused by shorting, corroded or
dirty terminals; loose connections, defective wire insulation or broken
wires. Switches, solenoids and ignition components may also fail, causing
a shorted or open circuit.
Before attempting any failure diagnosis of the electrical system, use a
test light or voltmeter to check the battery voltage. If the battery voltage is
satisfactory, check the cleanliness and tightness of the terminals and ground
connections. A general understanding of electrical servicing and use of
basic test equipment is necessary for troubleshooting and repair.
Major overhaul or repair of the starting motor or alternator should be
performed by trained technicians only.

Burnishing the electric clutch

WARNING: To insure maximum performance and life, it is
necessary to burnish the clutch.
Super Mini Z units built with serial number 03120228 and later were
built with Warner clutches. It is not necessary to burnish these clutches.
Super Mini Z units built prior to serial number 03120228 were built
with Ogura clutches. Occassionally it may be necessary to burnish the
clutch.
Burnishing the Ogura clutch (Fig. 11-4) will develop better contact
between the armature and rotor, helping to develop higher torque
capabilities without slipping. The warranty on the new clutch will be
302620 8/06
Battery

Electric clutch

voided if it is not burnished properly.
Use the following procedure to burnish the clutch:
1. Check the air gap between armature and rotor. Gap should be .012"
to .024".
2. Cycle the clutch on and off 10 times (15 seconds on and 15 seconds
off) with the engine operating at half throttles, approximately 1500
rpm.

Access to engine and hydraulic pumps

The hydraulic pumps are accessed by lifting the seat platform. The seat
platform is hinged at the front. To raise it, release seat latch and tilt seat
platform up and forward. The seat platform catch (Fig. 11-5) will prevent
the seat from going all the way over. However, if more access is desired
under the seat platform, the seat platform catch can be raised allowing the
seat to pivot more. Make certain to place the control levers in the park
brake position and pivot the arm rests upward before placing the seat
platform in the full forward position to prevent arm rest damage.
WARNING: Always wear adequate eye protection when
servicing the hydraulic system and battery.
11-9
Figure 11-3
Figure 11-4