This document is an owner's and operator's service manual for the Bad Boy MZ Series E-Magnum zero-turn mower. It provides comprehensive information on the mower's operation, maintenance, safety guidelines, and warranty.
Function Description:
The Bad Boy MZ Series E-Magnum is a zero-turn mower designed for efficient lawn maintenance. It is a ride-on mower, meaning the operator sits on the machine to control it. The "zero-turn" capability allows the mower to turn in place, providing high maneuverability and reducing uncut areas, which is particularly useful for navigating around obstacles and tight spaces. The "E-Magnum" designation indicates that this model is battery-operated, utilizing Lithium-Ion battery packs for power, making it an environmentally friendlier option compared to traditional gasoline-powered mowers. The mower is designed for cutting grass in various residential and potentially light commercial settings, with a focus on ease of use and safety.
Important Technical Specifications:
- Model: Magnum E
- SKU: BMZ42EV
- Deck Width: 42 inches
- Transaxle: 3400E-Mower Transaxle
- Front Tire: 11 x 4.00-5
- Rear Tire: 20 x 10-8
- Commonly Used Blade: 42" E-Magnum Blade (Part Number: 700-0028-00)
- Mower Weight (Magnum E-SERIES): 588 lbs (weights fluctuate with accessories)
- Maximum Towing Weight: 300 lbs (260 lbs @ 5° slope)
- Max Tongue Weight: 45 lbs (for 42" deck)
- Battery Type: Lithium-Ion (up to 6 battery packs)
- Battery Charging: Onboard charging port for up to six batteries, offboard charging also an option.
- Blade Bolt Torque: 90-110 ft-lbs upon re-installation.
- Front Fork Nut Torque: 100 ft-lbs.
- Rear Wheel Lug Torque: 65-75 ft-lbs.
- Tire Pressure: Rear tires 12 psi, Front tires 20 psi (for deck leveling).
- Deck Pitch Recommendation: ¼” pitch down in the front.
Usage Features:
- Controls: The mower features an ignition switch (two-position: off and on), a PTO (Power Take-Off) switch to engage/disengage blades, and control levers for speed, direction, and neutral lock.
- Parking Brake: Automatically engages when control levers are in the "PARK" position.
- Deck Height Control: A dial is used to set the cut height. Depending on the model, it may feature an actuator motor with a raise/lower switch or a foot pedal to raise the deck.
- USB Charging Port: For accessory charging.
- Charger Plugin: Port for connecting to a wall charger to charge all inserted batteries.
- Battery Pack Compartment: Holds up to 6 batteries.
- Control Panel Display: Provides mower information, including:
- Parking Brake Indicator: Shows when the parking brake is engaged.
- Seat Indicator: Shows if the operator is seated.
- Electronic Hour Meter: Registers cumulative operating time (up to 9,999.9 hours).
- Warning Indicator: Displays warnings; operator can access the menu for specific codes.
- Total Battery Level: Shows available battery from all inserted packs.
- Blade Speed Indicator: Shows selected blade speed (low, medium, high).
- Ground Speed Indicator: Shows selected ground speed (low, medium, high).
- Blade Speed / Menu Back Button: Cycles blade speed options; navigates back in menus.
- Menu / Menu Up Button: Enters menu; scrolls up in menus.
- Headlight Switch / Menu Down Button: Turns headlights on/off; scrolls down in menus.
- Ground Speed Control / Menu Accept Button: Cycles ground speed options; accepts selected items in menus. Blade engagement is not supported in high ground speed.
- Safety Interlock System: Prevents operation under unsafe conditions (e.g., PTO engaged with arms in park, operator not seated). Requires operator to be seated and arms in the correct position for various functions.
- Slope Operation: Requires caution. Recommended to mow up and down slopes, not across. Avoid slopes over 5° (transverse), 10° (uphill), or 15° (downhill).
- Neutral Bypass Rods: Located under the rear of the mower, these rods allow the mower to be moved manually when unpowered. Pushing them out activates the bypass, and lifting the locks returns them to the operating position.
Maintenance Features:
- Regular Checks:
- Daily: Check tire pressure, wheel lug nuts, blade condition, deck and battery compartment for debris, tighten nuts and screws.
- First 8 Hours: Grease mower.
- Every 50 Hours or Annually: Grease mower.
- Every 100 Hours or Annually: Grease mower.
- Every 250 Hours: Grease mower.
- Every 400 Hours: Grease mower.
- Blade Maintenance:
- Check blades after each use for sharpness and damage.
- Dull blades tear grass, requiring more power and leaving a frayed, brown top.
- Never attempt to straighten a bent blade by heating or weld a cracked blade.
- Always disengage PTO and wear thick gloves when handling blades.
- Blade sharpening should be performed by a professional.
- Blade removal involves using a 15/16" socket and an impact wrench (220 ft-lbs output torque recommended) or a box wrench with an extension.
- Blade spindles contain sealed, replaceable bearings.
- Deck Leveling:
- Requires a flat surface, correct tire pressure (rear 12 psi, front 20 psi).
- Deck should be level side-to-side and pitched ¼” down front-to-back.
- Adjustments are made by adjusting deck hangers in their slots.
- Involves using 2x4s to support the deck at approximately 3 ½” off the ground, then loosening and tightening deck hanger bolts.
- Grease Locations: Two grease fittings on each of the two turnbuckles (4 total). Grease at every oil change.
- Cleaning: Recommended to use an air hose or blower to remove dust and debris from the mower deck and engine compartment to prevent fire hazards.
- Storage: Store in a covered area, secure with straps, and ensure the parking brake is engaged.
- Warranty Registration: Must be completed by the selling dealer within 30 days of purchase to validate the warranty. Warranty is non-transferable.
- Service: All warranty repair and service must be handled through an authorized Bad Boy dealer. Model and serial numbers are located on a decal underneath the seat and are necessary for ordering parts.
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