Husqvarna MZ61 Parts Manual

The Husqvarna MZ61 is a 61-inch zero-turn riding mower designed for commercial and residential use, featuring a powerful engine, durable cutting deck, hydrostatic transmission, ergonomic controls, and a robust frame. This parts manual provides detailed diagrams, part numbers, and ordering information for maintenance, repair, and replacement of components. Below are key sections for identification, engine parts, deck assembly, drive system, controls, and ordering.

1. Product Identification 2. Engine & Related Parts 3. Cutting Deck Assembly 4. Drive System & Transmission 5. Controls & Operator Station 6. Frame & Chassis 7. Electrical System 8. Belts & Pulleys 9. Fasteners & Hardware 10. Maintenance Schedule 11. Parts Ordering & Support

Product Identification

Locate your model and serial number for accurate parts identification. Key identifiers: Model Plate (under seat or on frame), Serial Number (stamped on frame near rear axle).

Identifier	Location	Example Format
Model Number	Metal plate under seat	MZ61-966999999
Serial Number	Frame near right rear wheel	1234567890
Engine Model	Sticker on engine shroud	Kawasaki FR691V
Deck Size	Stamped on deck housing	61-inch

Engine & Related Parts

Engine components for Kawasaki FR series or equivalent. Always disconnect spark plug before servicing.

Air Filter Assembly: Includes filter element, housing, and pre-cleaner.
Fuel System: Fuel pump, carburetor, fuel lines, fuel filter.
Ignition System: Spark plug, ignition coil, wiring harness.
Cooling System: Cooling fins, fan, shrouds.
Exhaust System: Muffler, exhaust pipe, heat shield.

WARNING! Engine parts are under high pressure and temperature. Allow engine to cool completely before disassembly.

Cutting Deck Assembly

61-inch fabricated steel deck with three spindle assemblies. Parts include blades, spindles, baffles, and mounting hardware.

Blades: High-lift, mulching, or standard (part numbers vary by type).
Spindle Assemblies: Includes bearing housing, pulley, and shaft.
Deck Shell: Main housing, skid shoes, and discharge chute.
Belt Guides & Idlers: Tensioners and pulleys for deck drive belt.
Deck Lift Mechanism: Lift arms, linkage, and pivot points.

CAUTION! Ensure deck is securely supported and blades are stopped before servicing.

Drive System & Transmission

Hydrostatic Pumps: Dual hydro-gear pumps (left and right).
Drive Motors: Integrated with wheel hubs.
Drive Belts: Main drive belt and pump-to-engine belt.
Axles & Hubs: Wheel hubs, axle shafts, and bearings.
Transmission Linkage: Control rods, levers, and bushings.
Hydraulic Fluid: Recommended type and capacity.
Filters: Hydraulic filter part number.

Controls & Operator Station

Operator controls include steering levers, throttle, ignition switch, and seat. Parts: Control panel, levers, cables, and seat assembly.

Steering Levers: Left and right control levers with grips and pivot assemblies. Ignition Switch: Key switch with wiring. Seat: Suspension seat with mounting bracket and sensor (safety interlock). Pedals: Brake and clutch pedal assemblies. Dashboard: Hour meter, indicator lights.

Frame & Chassis

Heavy-duty steel frame components. Main frame, front axle, rear axle, and mounting brackets.

Disconnect battery and relieve hydraulic pressure before welding or cutting.
Identify frame part numbers for section replacement.
Check for cracks at stress points (engine mounts, deck mounts).

Tip: Use genuine Husqvarna frame parts to maintain structural integrity and warranty.

Electrical System

12-volt system with battery, starter, alternator, and safety switches.

Battery: 12V, group size U1, with hold-down bracket.
Starter Motor: Solenoid and mounting hardware.
Alternator/Charging System: Stator and regulator.
Safety Switches: Seat, brake, and PTO switches.
Wiring Harness: Main harness and connectors.
Fuses & Relays: Fuse block and relay locations.
Lights: Headlight and tail light assemblies (if equipped).

WARNING! Disconnect battery negative terminal before working on electrical system to prevent shorts.

Belts & Pulleys

Drive belts and associated pulleys for deck and transmission.

Belt	Part Number	Routing Diagram Ref
Deck Drive Belt	532XXXXXX	Fig. 4A
Main Drive Belt (Engine to Pump)	532XXXXXX	Fig. 4B
PTO Belt	532XXXXXX	Fig. 4C
Idler Pulleys	532XXXXXX	Fig. 4D

Fasteners & Hardware

Specified bolts, nuts, washers, and pins. Use only recommended grade hardware.

CAUTION! Do not substitute with non-specified hardware; may affect safety and performance.

Maintenance Schedule

Recommended part replacement intervals. Refer to service manual for procedures.

Component	Interval (hours)	Part Number
Engine Oil Filter	50	XXXX-XXXX
Air Filter Element	25	XXXX-XXXX
Spark Plug	100	XXXX-XXXX
Hydraulic Filter	200	XXXX-XXXX
Deck Spindle Bearings	500	XXXX-XXXX

Parts Ordering & Support

Resource	Contact Information	Purpose
Husqvarna Dealers	Locator at www.husqvarna.com	Local parts and service
Parts Diagrams	Online at parts.husqvarna.com	Exploded views and part numbers
Customer Support	1-800-487-5962	Technical and ordering assistance
Warranty	See warranty card	Coverage details and claims

Note: Always provide model and serial number when ordering parts.

Support: 1-800-487-5962; www.husqvarna.com