Safety Instructions & Operator’s Manual for MID MOUNT Z-RIDER ZERO TURNING HYDRO DRIVE SERIES 1 MODELS NZM19481KWV NZM21521KWV NZM25611KWV MODEL NUMBER EXPLANATION N Z M 19 48 1 KWV MODEL DESIGNATION DRIVE SYSTEM TYPE MOWER ORIENTATION ENGINE HP ENGINE TYPE SERIES DESIGNATION MOWER DECK SIZE POWER UNIT N – Model Designation Z – Zero Turning – Hydro Drive M – Mid Mount Mower 19.0 – Engine Horse Power 21.0 -- Engine Horse Power 25.
IMPORTANT SAFETY INSTRUCTIONS WARNING: This powerful cutting machine is capable of amputating hands and feet and can throw objects that can cause injury and damage! Failure to comply with the following SAFETY instructions could result in serious injury or death to the operator or other persons. The owner of the machine must understand these instructions and must allow only persons who understand these instructions to operate machine.
IMPORTANT SAFETY INSTRUCTIONS PREPARATION SAFE HANDLING OF GASOLINE (Continued From Previous Page) 2. Only mature, responsible persons shall operate or service the machine and only after proper instruction and training. The owner is responsible for training the operators. Further, the owner/operator can prevent and/or is responsible for accidents or injuries occurring to themselves, other people or property. 3.
IMPORTANT SAFETY INSTRUCTIONS OPERATION MAINTENANCE (Continued From Previous Page) 8. Keep hands and feet away from rotating blades underneath deck. DO NOT place foot on ground while BLADES are ON or machine is in motion. 9. DO NOT operate machine without entire grass catcher or guards in place. DO NOT point discharge at people, passing cars, windows or doors. 10. Slow down before turning. 11. Watch out for traffic when near or crossing roadways. 12.
TABLE OF CONTENTS IMPORTANT SAFETY INSTRUCTIONS ........................................................................2-4 TABLE OF CONTENTS ..................................................................................................... 5 SECTION 1 - FAMILIARIZATION ...................................................................................... 6 SECTION 2 –SAFETY MESSAGES AND SYMBOLS....................................................7-8 SECTION 3 - OPERATING INSTRUCTIONS ....................
Section 1 - FAMILIARIZATION HOUR METER KEY SWITCH BLADE SWITCH CHOKE CONTROL MOTION CONTROL LEVER ENGINE SPEED CONTROL OPERATOR’S SEAT LEFT HAND FUEL TANK RIGHT HAND FUEL TANK MOTION CONTROL LEVER DECK LIFT LEVER PARKING BRAKE LEVER CONTROL PANEL (SEE INSET) DISCHARGE DEFLECTOR DECK LIFT PEDAL FIGURE 1.1 1.1 INTRODUCTION This manual has been prepared for the operator’s of the SNAPPER MID MOUNT Z-RIDER.
Section 2 – SAFETY MESSAGES AND SYMBOLS DANGER ! ROTATING PARTS KEEP AWAY FROM MOVING PARTS MOTION CONTROL LEVER OPERATION PARKING BRAKE LEVER OPERATION WEAR HEARING PROTECTION WARNING ! AVOID SERIOUS INJURY OR DEATH STARTING, OPERATION & STOPPING OF MACHINE 7
Section 2 – SAFETY MESSAGES AND SYMBOLS RUN OFF/STOP START PULL SWITCH “UP” TO ENGAGE BLADES PUSH SWITCH “DOWN” TO DISENGAGE BLADES HOUR METER KEYSWITCH FAST SLOW CONTROL PANEL IDENTIFICATION CHOKE CONTROL ENGINE SPEED CONTROL DANGER! ROTATING BLADES KEEP CHILDREN AND OTHERS OUT OF MOWING AREA STOP RUN START DANGER! ROTATING BLADES IGNITION SWITCH 8
Section 3 - OPERATING INSTRUCTIONS 3.1 PRE-START CHECK LIST Make the following checks and perform the service required before each start-up. 3.1.1. Check tires and add or release air as needed to bring pressure to 12 psi in drive tires. Pressure in front caster wheels should be 25 psi. 3.1.2. Check guards, deflectors and covers to make sure all are in place and securely tightened. 3.1.3. Check engine oil and add oil as needed to bring level up to the FULL mark.
Section 3 - OPERATING INSTRUCTIONS ROLL RELEASE: To roll the machine without the engine running, pressure within the hydraulic pumps must be released. There is a hydraulic pressure relief valve on the upper side of each pump that is used to release the pressure. Use a wrench to rotate both relief valves counter clockwise two full turns to open. After rolling machine, both relief valves must be rotated clockwise to close valves and tighten securely before operating machine.
Section 3 - OPERATING INSTRUCTIONS 3.2.1. STARTING ENGINE NOTE: If after 5 seconds of cranking the engine does not start, release the key. Attempt starting again after waiting for approximately 20 seconds. 7. After engine starts, move the choke control to the “OFF” or no choke position. Allow a brief warm-up until engine runs smooth. 3.2.5. PARKING BRAKE 1. Engage parking brake by pulling the parking brake lever back to the engaged position. See Figure 3.7.
Section 3 - OPERATING INSTRUCTIONS 3.3 CUTTING HEIGHT ADJUSTMENT 1. Adjust cutting height, as desired, to any position, using deck lift lever. The release latch should be pulled up when lowering the deck. When raising the deck, the release latch does not have to be pulled up. IMPORTANT: There is a foot assist pedal located to the right front side of the footrest. Always use this assist pedal to raise or lower the deck to the desired cutting height. See Figure 3.9 & 3.10. 2.
Section 3 - OPERATING INSTRUCTIONS 3.5 SAFETY INTERLOCK SYSTEM CHECKS This machine is equipped with an electrical safety interlock system that is provided for the safety of the operator and others. All safety devices must be in place and functioning properly before operating the machine. Perform the following interlock system checks periodically during the operating season. Contact your authorized Snapper dealer if you have questions. 3.4.2. STOPPING MACHINE 1.
Section 4 - MAINTENANCE 4.1 INTRODUCTION To retain the quality of the SNAPPER mower, use genuine SNAPPER replacement parts only. Contact a local SNAPPER dealer for parts and service assistance. For the correct part or information for a particular SNAPPER mower, always mention the model and serial number. SNAPPER recommends returning the mower to an authorized SNAPPER dealer annually for inspection and addition of any new devices, which might upgrade the safety of the mower.
Section 4 - MAINTENANCE 4.2.3. CHECK MOWER DRIVE BELT 1. Lower deck to lowest setting. 2. Remove footrest. See Figure 4.3. 3. Removal of footrest will allow access to deck belt. 4. Check the belt tension. The idler pulleys and springs provide proper belt tension and require no adjustments. If belt is frayed, slit, severed or belt strands exposed, replace belt before operating mower. 4. Clean Mower Deck a. Remove key from ignition switch. b. Remove spark plug wire(s) and secure away from spark plug(s). c.
Section 4 - MAINTENANCE HYDRAULIC FLUID RESERVOIRS 4.3.3. RIDING MOWER - LUBRICATION 1. Front Wheel Bearings Lubricate with Kendall NLGI No. 2 lithium grease or equivalent, from a grease gun. See Figure 4.5. FRONT WHEEL FIGURE 4.6 LUBRICATE BEARINGS FIGURE 4.5 2. Hydro Pumps Check the level of the fluid in both of the fluid reservoirs. Wipe away all dirt and debris from around reservoir cap before removing. Oil must remain absolutely clean! Check with machine on a level surface with engine “OFF”.
Section 4 - MAINTENANCE 4.6 DECK REMOVAL Move power unit/mower deck to an area where the mower deck is to be disconnected. Turn engine “OFF” and remove key from switch. Remove spark plug wire(s) and secure away from spark plug(s). Move motion control levers to the neutral position. Engage parking brake. WARNING Allow engine to cool for at least ten minutes before performing service or maintenance. DO NOT smoke near fuel components when performing service or maintenance.
Section 4 - MAINTENANCE 6. Remove deck drive belt from around deck pulley. 7. Remove bolts and nuts to disconnect both stabilizers from mower deck and power unit. See Figure 4.12 & Figure 4.13. WARNING DO NOT attempt any maintenance, adjustments or service with engine running. STOP engine. STOP blades. Set parking brake. Remove key. Remove spark plug wires and secure away from spark plugs. Engine and components are HOT. Avoid serious burns, allow sufficient time for all parts to cool. 4.
Section 5 - ADJUSTMENTS & REPAIR DANGER REMOVE MOTION CONTROL LEVER CONNECTING ROD Exercise EXTREME CAUTION when making this adjustment, due to close proximity of moving parts. 5.1 NEUTRAL POSITION ADJUSTMENTS The motion control levers control the movement and stopping of the machine. Move the control levers to the center or neutral position to stop machine. IMPORTANT: Always return both motion control levers with hand assistance to the neutral position.
Section 5 - ADJUSTMENTS & REPAIR 5.1 NEUTRAL POSITION ADJUSTMENTS (Continued From Previous Page) 12. With motion control levers remaining in the neutral lock position, See Figure 3.7, hold connecting rod up to the activation assembly and check length of rod. Tie rod end bolt must align with the activation assembly. If bolt is not aligned with the activation assembly, adjust tie rod. Loosen jam nut that secures tie rod. Rotate tie rod in or out to align with hole in activation assembly.
Section 5 - ADJUSTMENTS & REPAIR DECK TIMING ROD NO ADJUSTMENT REQUIRED WARNING DO NOT attempt any maintenance, adjustments or service with engine running. STOP engine. STOP blades. Set brake. Remove key. Remove spark plug wires and secure away from spark plugs. Engine and components are HOT. Avoid serious burns, allow sufficient time for all parts to cool. 5.2.1. MOWER DECK ADJUSTMENT (LEVELNESS) SIDE to SIDE and FRONT to REAR 7.
Section 5 - ADJUSTMENTS & REPAIR UNHOOK TRACTION DRIVE IDLER SPRING WARNING REMOVE ANTIROTATION BRACKET DO NOT attempt any maintenance, adjustments or service with engine running. STOP engine. STOP blades. Set brake. Remove key. Remove spark plug wires and secure away from spark plugs. Engine and components are HOT. Avoid serious burns, allow sufficient time for all parts to cool. 5.3 TRACTION BELT TENSION The traction drive belt tension does not require adjustment.
Section 5 - ADJUSTMENTS & REPAIR 5.6 TRACKING ADJUSTMENT If the machine does not track straight when the Motion Control Levers are in the maximum forward speed position, perform the following adjustment. Rear tire pressure must be set to 12 PSI before making this adjustment. 1. Loosen bolts that secure adjustment plates and slide plates all the way forward. Retighten bolts. 2. Start machine and drive in smooth flat open area at maximum forward speed. 3.
Section 5 - ADJUSTMENTS & REPAIR 5.8 ENGINE ADJUSTMENTS & REPAIR Refer to the engine owner’s manual for engine adjustments and/or repairs. BLADE MOUNTING NUT 5.9 MOWER BLADE REPLACEMENT 5.9.1. BLADE WEAR LIMITS 1. Inspect blade frequently for signs of excessive wear or damage. Replace blade when it reaches the wear limit. See Figure 5.14. SPINDLE ASSEMBLY BLADE SPACERS 5.9.2. BLADE SHARPENING 1. Remove blade. See Figure 5.15. 2. Inspect condition of blade. See Figure 5.14. 3.
Section 5 - ADJUSTMENTS & REPAIR WARNING RED (POSITIVE) CABLE Shield the positive terminal with terminal cover located on battery harness. This prevents metal from touching the positive terminal, which could cause sparks. Cables must be connected to battery terminals in the proper position. RED (Positive) cable must go to the ( + ) terminal. BLACK (Negative) cable must go to the ( - ) terminal.
Section 5 - ADJUSTMENTS & REPAIR Battery Condition Chart State of Charge 100% Charged w/ Sulfate Stop 100% Charged 75% Charged 50% Charged 25% Charged 0% Charged Syringe Hydrometer 1.280 1.265 1.210 1.160 1.120 Less than 1.100 5.10.4. BATTERY TESTING There are two types of battery tests: Unloaded and Loaded. The unloaded test is the procedure that will be discussed. It’s the simplest and most commonly used. An unloaded test is made on a battery without discharging current.
Section 5 - ADJUSTMENTS & REPAIR 5.11 MOWER SPINDLES (Field Serviceable Spindles) BEARING REPLACEMENT In the event that a spindle bearing requires replacement, the SNAPPER Field Serviceable Spindles have been designed so that no special tools or presses are required. 1. Remove belt. Loosen blade nut and remove. Allow blade bolt, washer, blade and four spacers to drop down out of the spindle housing. See Figure 5.19. IMPORTANT: Spindle housing must be filled with grease before operating mower.
Section 5 - ADJUSTMENTS & REPAIR 5.12 HYDRAULIC SYSTEM, PURGING After replacing or repairing hydraulic system components, one or both of the wheel drives may not pull properly. This is likely to be caused by air entrapped in the system. If you experience a pulling issue after completing repairs, perform the following procedure to purge the air from one or both of the hydraulic drive systems. IMPORTANT: WHEN REPLACING THE HYDRAULIC FLUID FILTERS, PRE-FILL BOTH WITH OIL (SAE 20W50 API SL) BEFORE INSTALLING.
TROUBLESHOOTING PROBLEM PROBABLE CAUSE CORRECTIVE ACTION Starter Will Not Crank 1. Battery dead. 2. Blown fuse. Engine 3. Electrical connections loose or corroded. 4. Defective ignition switch. Engine Will Not Start 1. Blade engagement switch in the “ON” position. 2. Park brake not set or Operator not seated. 3. Motion Controls not in Neutral Lock Position. 4. Fuel tank empty. 5. Engine needs choking. 6. Spark plug wire disconnected. 7. Battery weak or dead. 8.
TROUBLESHOOTING PROBLEM PROBABLE CAUSE Machine Will Not Move 1. Motion Control Levers in the neutral “N” position. 2. Hydro. Pumps in roll release setting. Loss Of Traction 3. Low transmission hydraulic oil level. 4. Parking Brake engaged. 5. Traction drive belt requires replacement. Blade(s) Not Cutting 1. Blade engagement switch in the “OFF” position. 2. Clutch belt slipping. 3. Mower belt slipping. 4. Electric clutch not functioning. 1. Uneven tire pressure. Cutting Grass 2.
SERVICE SCHEDULE ITEM Check Oil Level REF.
2 YEAR LIMITED WARRANTY For two (2) years from purchase date for the original purchaser's use, SNAPPER, through any authorized SNAPPER dealer will replace, free of charge (except for taxes where applicable), any part or parts found upon examination by the factory at McDonough, Georgia, to be defective in material or workmanship or both.
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SNAPPER PRODUCT REGISTRATION FORM IMPORTANT: KEEP THIS INFORMATION FOR YOUR PERSONAL RECORDS (Complete the following information on your Snapper purchase) Model Number__________________________________________________________ Serial Number __________________________________________________________ Date of Purchase ________________________________________________________ Retailer_________________________________________________________________ Retailer’s Phone Number ________________________________________
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Safety Instructions & Operator’s Manual for MID MOUNT Z-RIDER ZERO TURNING HYDRO DRIVE SERIES 1 IMPORTANT Snapper products are built using engines that meet or exceed all applicable emissions requirements on the date manufactured. The labels on those engines contain very important emissions information and critical safety warnings. Read, Understand, and Follow all warnings and instructions in this manual, the engine manual, and on the machine, engine and attachments.
