Snapper P216012, NP216012, WP221651BV User Manual

Safety Instructions & Operator’s Manual for
21” STEEL DECK
WALK MOWERS
SERIES 12 & 14
MODELS
MODEL NUMBER EXPLANATION
R P 21 50 12 T 2
MODEL DESIGNATION ENGINE OPTIONS SELF-PROPELLED ENGINE TYPE CUTTING WIDTH SERIES DESIGNATION ENGINE HORSE POWER
R – Recycling Model F – Flange Type Deck 12 - Series Designation P – Self Propelled Model N – California Model 14 – Series Designation E – European Model 21 – 21” Cutting Width T – Tecumseh Engine
50 – 5.0 HP (Engine Horse Power) 2 – Two Cycle Engine 60 – 6.0 HP (Engine Horse Power)
Thank you for buying a SNAPPER Product! Before operating your Walk Behind, read this manual carefully and pay particular attention to the “IMPORTANT SAFETY INSTRUCTIONS” on Pages 2 & 3. Remember that all power equipment can be dangerous if used improperly. Also keep in mind that SAFETY requires careful use in accordance with the operating instructions and common sense.
COPYRIGHT © 1999 SNAPPER INC. ALL RIGHTS RESERVED
MANUAL No. 3-5743 (REV. 2, 9/2/99)
P216012 EP216012 NP216012 RP215012 RP216012 RP215012T2 FRP216012 NRP215012 NFRP216012
IMPORTANT SAFETY INSTRUCTIONS
WARNING: This powerf ul cutting machine is capab le of amputating hand s and feet and can throw objects that can cause injury and damage! Failure to comply with the follow ing SAFETY instru ctions could resu lt 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. Each person operating the machine must be of sound mind and body and must not be under the influence of any substance, which might impair vision, dexterity or judgment. If you have any questions pertaining to your machine which your dealer cannot answer to your satisfaction, call or write the Customer Service Department at SNAPPER, McDonough, Georgia 30253. Phone: (1-800-935-2967).
PROTECTION FOR CHILDREN
Tragic accidents can occur if the operator is not alert to the presence of children. Children are often attracted to the machine and the mowing activity. Never assume that children will remain where you last saw them.
1. KEEP children out of the mowing area and under the watchful care of a responsible adult.
2. DO NOT allow children in yard when mach ine is operated and turn machine OFF if anyone enters the area.
3. DO NOT allow pre-teenage children to operate machine.
4. ALLOW only responsible adults & teenagers with mature judgment under close adult supervision to operate machine.
5. DO NOT pull mower backwards unless absolutely necessary. LOOK and SEE behind and down for children, pets and hazards before and while backing.
6. USE EXTRA CARE when approaching blind corners, shrubs, trees, or other object s that may obscure vision.
SLOPE OPERATION
1. Slopes are a major facto r related to slip and fall accidents, which can result in severe injury. All slopes require extra cau tion. If you feel uneasy on a slope, DO NOT mow it.
2. Mow across slopes, never up-and-down. Exercise extreme CAUTION when changing directions on slopes. DO NOT mow steep slopes or other areas where stability or traction is in doubt.
3. Use extra care with crass catchers or other attachments; these affect the handling and the stability of the machine.
PREPARATION
1. Read, understand, and follow instructions and warnings in this manual and on the mower, engine and attachments. Know the controls and the proper use of the mower before starting.
2. Only mature, responsible persons shall operate the machine and only after proper instruction.
PREPARATION
(Continued From Previous Column)
3. Data in dicates that o perators age 60 and abov e, are involved in a large percentage of mower­related injuries. These operators should evaluate their ability to operate the mower safely enough to protect themselves and others from serious injury.
4. Handle fuel wit h ext ra care. Fuels are flammabl e and vapors are explosive. Use only an approved fuel container. DO NOT remove fuel cap or add fuel with engine running. Add fuel outdoors only with engine stopped and cool. Clean spilled fuel and oil from machine. DO NOT smoke.
5. Check the area to be mowed and remove all objects such as toys, wire, rocks, limbs and other objects that could cause injury if thrown by blade or interfere with mo win g. Also note the location of holes, stumps, and other possible hazards.
6. Keep people and pets out of the mowing area. Immediately, STOP Blade, Stop engine and Stop mower if anyone enters the area.
7. Check shields, deflectors, switches, blade controls and other safety dev ices frequently for proper operation and location.
8. Make sure all safety decals are clearly legible. Replace if damaged.
9. Protect yourself when mow ing and wear safety glasses, long pants and substantial footwear. DO NOT mow barefooted or with sandals.
10. Know how to STOP blade and engine quickly in preparation for emergencies.
11. Use extra care when loading or unloading the machine into a trailer or truck.
12. Check grass catcher components frequently for signs of wear or deterioration and replace as needed to prevent injury from thrown objects going through weak or torn spots.
2
IMPORTANT SAFETY INSTRUCTIONS
OPERATION
1. DO NOT put hands or feet near or under rotating parts. Keep clear of discharg e area while engine is running.
2. STOP engine when crossing gravel drives, walks, or roads, and under any conditions where thrown objects might be a hazard.
3. Mow only in daylight or good artificial light.
4. DO NOT operate mower while under the influence of alcohol or drugs.
5. After striking a foreig n object or if mower vibrates abnormally, STOP the engine, disconnect and secure spark plug wire. Inspect t he mower for any damage and repair the damage.
6. DO NOT mow near drop offs, ditches or embankments. Operator could lose footing or balance.
7. STAY ALERT for holes and other hidden hazards. Tall grass can hide obstacles. Keep away from ditches, washouts, culverts, fences and protruding objects.
8. DO NOT mow on wet grass. Always be sure of your footing. Keep a firm hold on the handle and walk, never run. Slipping could cause injury.
9. DO NOT leave the machine with the engine running. STOP BLADE and STOP ENGINE before leaving the operators position for any reason.
10. Before cleaning, repairing or inspecting make certain engine, blade and all moving parts have STOPPED. Disconnect and secure spark plug wire away from plug to prevent accidental starting.
11. STOP engine and wait until the blade comes to complete STOP before removing grass bag and/or clearing grass.
12. DO NOT operate mower without the entire grass catcher or guards in place. DO NOT point discharge at people, passing cars, windows or doors.
13. Slow down before turning.
14. Watch out for traffic when near or crossing roadways.
15. DO NOT operate engine in enclosed areas. Engine exhaust gases contain carbon monoxide, a deadly poison.
MAINTENANCE AND STORAGE
1. DO NOT store mower or fuel container inside where fumes may reach an open flame, spark or pilot light such as in a water heater, furnace, clothes dryer or other gas appliance. Allow engine to cool before storing machine in an enclosure. Store fuel container out of reach of children in a well ventilated, unoccupied building.
2. Keep mow er and engine free of grass, leaves or excess grease to reduce fire hazard and engine overheating.
3. When draining fuel tank, drain fuel into an approved container outdoors and away from open flame.
4. Keep all bolts, especially blade bolts, nuts and screws properly tight. Check that all cott er pins are in proper position.
5. Always provide adequate ventilation when running engine. Engine exhaust gases contain carbon monoxide, a deadly poison.
6. Service engine and make adjustments only when engine is stopped. Removed spark plug wire from spark p lu g an d secu re w ire away from spark plug to prevent accidental starting.
7. DO NOT change engine governor speed settings or overspeed engine.
8. Check grass bag assembly frequently for wear or deterioration to avoid thrown objects and exposure to moving parts. Replace with new bag if loose seams or tears are ev ident. Rep lace slider or bag adapter if broken or cracked.
9. Mower blades are sharp and can cut. Wrap the blades or wear heavy leather gloves and use CAUTION when handling them.
10. DO NOT test for spark by grounding spark plug next to spark plug hole; spark plug could ignite gas exiting engine.
11. Have machine serviced by an authorized SNAPPER dealer at least once a year and have the dealer install any new safety devices.
12. Use only genuine SNAPPER replacement parts to assure that original standards are maintained.
3
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS.............................................2 & 3
TABLE OF CONTENTS............................................................................4
SECTION 1 - FAMILIARIZATION..............................................................5
SECTION 2 - OPERATING INSTRUCTIONS.........................................6-8
Pre-start Checklist ............................................................................................... 6
Starting & Stopping Engine & Blade............................................................... 6-7
Starting & Stopping Wheel Drive ....................................................................... 7
Handle Height Adjustment.................................................................................. 7
Cutting Height Adjustment
Recycling Operation............................................................................................ 8
Baffle Adjustment................................................................................................ 8
Installation of Grass Catcher.............................................................................. 8
SECTION 3 - MAINTENANCE INSTRUCTIONS..................................9-10
Change Engine Oil............................................................................................... 9
Check Transmission Grease..........................................................................9-10
Check Mower Blade........................................................................................... 10
Check Engine Drive Belt ................................................................................... 10
Check Transmission Poly-V Belt...................................................................... 10
Service - Annually.............................................................................................. 10
Engine.............................................................................................................. 10
Air Filter........................................................................................................... 10
Engine Oil........................................................................................................ 10
Storage Procedure............................................................................................. 10
SECTION 4 - ADJUSTMENTS AND REPAIR....................................11-17
Mower Blade Replacement ............................................................................... 11
Blade Sharpening .........................................................................................11-12
Wheel Drive Control Adjustment...................................................................... 12
Driven and Drive Disc Service.......................................................................... 13
Cleaning Drive Disc and Driven Disc............................................................ 13
Drive Spring Repair/Replacement................................................................. 13
Driven Disc Adjustment............................................................................ 13-14
Driven Disc Replacement..........................................................................14-15
Driven Disc Bearing Replacement................................................................ 15
Hex Shaft Bearing Replacement ...................................................................16
Belt Service ........................................................................................................ 16
Engine Drive Belt Replacement ...............................................................16-17
Transmission Poly-V Belt Replacement....................................................... 17
TROUBLESHOOTING ............................................................................ 18
SERVICE SCHEDULE ............................................................................19
Maintenance/Replacement Parts...................................................................... 19
WARRANTY............................................................................................ 20
PRIMARY MAINTENANCE................................................................21-24
4
Section 1 - FAMILIARIZATION
FIGURE 1.1
1.1 INTRODUCTION
This manual has been prepar ed for the operators of the SNAPPER WALK BEHIND MOWERS. Its purpose, aside from recommending operating and routine service requirements, is to promote safety through the use of accepted operating practices. Read, Understand and Follow the “IMPORTANT SAFETY INSTRUCTIONS” on Pages 2 & 3 of this manual and all safety messages on the mower and attachments before operating the mower.
1.2 NOMENCLATURE
The nomenclature drawing above, Figure 1.1, shows the essential parts of the SNAPPER WALK BEHIND MOWERS. It is recommended that all operators of the mower become thoroughly familiar with the controls, parts and operation of the mower before operating. Specific details involving the engine are found in the separate engine owner’s manual. Study these manuals befor e operating and keep both handy for future reference.
5
Section 2 - OPERATING INSTRUCTIONS
POSITION)
2.1 PRE-START CHECK LIST
Make the following checks and perform the service required before each start-up.
2.1.1. Check guards, deflectors, grass bag, adapter and covers to mak e sure all are in place and securely tightened.
2.1.2. Check blade c ontr ol and wheel drive contr ol to insure they work freely. See Figure 2.1.
RECYCLING MODEL SHOWN (ROPE START MOUNTED ON RIGHT SIDE OF HANDLE)
BLADE CONTROL
WHEEL DRIVE CONTROL
FIGURE 2.1
2.1.3. Check cutting height. Adjust to desired height.
2.1.4. Check engine oil and add oil as needed to bring
level up to the full mark. Refer to Engine Owner’s Manual for oil specifications. See Figure 2.2.
FIGURE 2.2
2.1.5. Add fuel to tank after pushing the mower
outside where fumes can saf ely dissipate. Make sure cap is tightened after refueling. Refer to Engine Owners Manual for specifications.
2.1.6. Clean exterior surfaces of cutting deck and engine of any accumulation of spilled fuel, dirt, grass , oil, etc. Keep engine air intake screen and cooling fins clear at all times.
2.2 STARTING & OPERATION
2.2.1. ENGINE & BLADE (Primer Models)
1. Move engine speed control to the “Fast” (Rabbit)
position. See Figure 2.3.
NOTE: Stop the engine (and blade) by releasing the
blade control.
BLADE CONTROL
WHEEL DRIVE CONTROL
ENGINE SPEED CONTROL (SHOWN IN FAST
2. Push primer button three times to start a cold
engine. NOTE: Do not use primer button to start warm engine.
3. Pull blade control against handle.
4. Pull rope start handle to crank engine.
5. After engine starts, allow a brief warm-up until
engine runs smooth.
CATCHER MODEL SHOWN (ROPE START MOUNTED ON LEFT SIDE OF HANDLE)
FIGURE 2.3
6
Section 2 - OPERATING INSTRUCTIONS
POSITION
SIXTH
HEIGHT
1
HEIGHT
6
1
5 6
2.2.2. PROPELLING MOWER (Self Propelled Models Only)
1. Move ground speed control to the desired speed
position. See Figure 2.4.
2. Start engine. Refer to Section “Starting & Operation”.
3. Move wheel drive control against handle to engage wheel drive and propel mower forward. Forward speed can be adjusted while the mower is moving by changing position of the ground speed control. See Figure 2.4.
MOVE GROUND SPEED CONTROL TO DESIRED POSITION
(FAST) SIXTH SPEED
FIRST
BLADE CONTROL
RECYCLING MODEL SHOWN (ROPE START MOUNTED ON RIGHT SIDE OF HANDLE)
(SLOW) FIRST SPEED POSITION
FIGURE 2.4
WHEEL DRIVE CONTROL
2.3 STOPPING
Stop engine and blade by releasing the blade control. Stop forward motion of mower by releasing the wheel drive control.
2.4 HANDLE HEIGHT ADJUSTMENT
The height of the mo wer handle can be adjusted as follows:
1. Loosen the lower nuts on each lower handle as shown in Figure 2.5.
HIGHER
LOWER HANDLE
2. Move upper mower handle up or down until the
desired position is achieved.
3. Tighten the lower nuts on each lower handle to maintain desired position.
STOP engine and mow er b lade b y releasing the blade control before adjusting cutting height or handle height.
2.5 CUTTING HEIGHT ADJUSTMENT
1. Pull the height adjusting latch outward and move
to desired cutting height. See Figure 2.6.
2. Set all wheels at the same cutting height. The highest cutting position is Notch 6. The lowest cutting position is Notch 1. See Figure 2.7.
LATCH POSITIONS
WARNING
LOWEST CUTTING
LATCH
2
3
4
HIGHEST CUTTING
FIGURE 2.6
LOWER
CUTTING HEIGHT SETTINGS
LOOSEN LOWER NUTS ON EACH LOWER HANDLE
FIGURE 2.7
FIGURE 2.5
7
Section 2 - OPERATING INSTRUCTIONS
BAFFLE
CONNECTOR
WARNING
DO NOT attempt any maintenance, adjustments or service with engine and blade running. STOP engine and blade. Disconnect spark plug wire and secure away from spark plug. Engine and components are HOT. Avoid serious burns, allow sufficient time for all components to cool.
2.6 RECYCLING OPERATION NOTE: For best recycling results, cut up to a m axim um of
1/3 of grass blade length and recycle ONLY when grass is dry.
1. Set all wheels in the highest cutting position (Notch 6).
2. Move engine speed control to “FAST” (Rabbit) position.
3. Move ground speed control to slowest speed setting.
4. Proceed mowing slowly. If grass is very dense, lower each rear wheel latch one notch lower than the front wheel latches to improve recycling performance.
2.7 ADJUSTING FRONT DECK BAFFLE (Models with an “F” prefix in model number) (Example: F
R215012)
The front of the cutting deck on these m odels has been modified with an open area. This allows the blade to have more direc t c ontact with the grass and allows more air flow into deck chamber. The adjustable baffle should be secured in the lowest position when using a grass bag. T he baffle should be secured in the highest position when mulching grass.
NOTE: Under certain conditions, when mulching, some grass may blow out from under front of baffle. This is normal but, the amount of grass blowing out can be reduced. Lower baffle slightly to reduce the amount of grass blow out.
1. Stop engine.
2. Loosen wing nuts that secure front deck baffle.
See Figure 2.8.
3. Lower the adjustable baffle to the lowest position when using a grass bag. Raise the baffle to its highest position when mulching grass. Take care to keep the baffle’s lower edge par allel to the bottom of the deck. See Figure 2.8.
4. Retighten wing nuts securely.
2.8 INSTALLATION of GRASS CATCHER
Install grass catcher by sliding connector over flange of adapter. See Figure 2.9. Attach grass bag hooks over middle handle cross bar. See Figure 2.10.
HOLE DESIGNATES TOP OF BAFFLE (ALWAYS KEEP HOLE IN UP POSITION)
FRONT DECK BAFFLE (SHOWN IN HIGHEST POSITION)
FRONT CUTOUT OF DECK
DO NOT operate without entire Grass Catcher or guard in place. Grass Catcher components are subject to deterioration during normal use. Inspect frequently and replace worn or damaged components immediately.
POSITION BAG BETWEEN HANDLES
BAG ADAPTER
ATTACH BAG HOOKS OVER MIDDLE HANDLE CROSS BAR
WING NUT
MOVE BAFFLE UP FOR MULCHING GRASS
MOVE BAFFLE DOWN FOR GRASS BAGGING
FIGURE 2.8
WARNING
FIGURE 2.9
FIGURE 2.10
FRONT DECK
WING NUTS
SLIDE CONNECTOR DOWN OVER BAG ADAPTER FLANGE
MIDDLE HANDLE CROSS BAR
8
Section 3 - MAINTENANCE
3.1 INTRODUCTION
To retain the quality of the 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 mower, always mention model and serial number.
3.2 SERVICE - AFTER FIRST 5 HOURS
3.2.1. CHANGE ENGINE OIL
WARNING
DO NOT attempt any maintenance, adjustments or service with engine and blade running. STOP engine and blade. Disconnect spark plug wire and secure away from spark plug. Engine and components are HOT. Avoid serious burns, allow sufficient time for all components to cool.
1. Refer to Engine Manual for proper oil
specifications and procedures.
2. For simplest/cleanest oil change, loosen lower handle wing nuts and stand mower up on lower handle as shown in Figure 3.1. Drain oil through dipstick tube into a container.
FIGURE 3.1
3.2.2. CHECK GREASE LEVEL IN TRANSMISSION
1. Remove transmission fill plug. Roll machine
forward or backward while looking down into plug hole.
2. If liquid (the small gear below the plug hole), add an amount, to cover gear, of Snapper “ 00” grease. See Figure 3.2.
FILL PLUG
NOTE: Snapper “00” Grease (Part No. 2-9443) is available
at your SNAPPER dealer.
grease IS NOT visible on the input gear
FIGURE 3.2
(Continued on Next Page)
9
Section 3 – MAINTENANCE
40 FT. LBS.
3.2.2. CHECK GREASE LEVEL IN TRANSMISSION (Continued from previous page)
NOTE: Do not spill grease or oil on surfac e of drive disc.
See Figure 3.3.
3. Reinstall transmission plug.
4. Check grease level after each 25 hours of
operation.
KEEP DRIVE DISC CLEAN !
3.2.4 CHECK ENGINE DRIVE BELT
1. Visually check engine drive belt for cracking,
fraying, severed or belt strands exposed. If worn or damaged, replace belt before operating mower.
3.2.5 CHECK TRANSMISSION POLY-V BELT
1. Visually check poly-v belt for cracking, fraying,
severed or belt strands exposed. If worn or damaged, replace belt before operating mower.
RECOMMENDED BLADE RETAINING CAP SCREW TORQUE VALUE SHOULD BE 30 TO
FIGURE 3.3
WARNING
DO NOT attempt any maintenance, adjustments or service with engine and blade running. STOP engine and blade. Disconnect spark plug wire and secure away from spark plug. Engine and components are HOT. Avoid serious burns, allow sufficient time for all components to cool. Wear heavy leather gloves when handling or working around cutting blades. Blades are extremely sharp and can cause severe injury.
IMPORTANT: DO NOT tip machine with carburetor or
spark plug down. Oil f rom crankcase will saturate the air filter and cause the engine to be hard to start or not start at all. If contamination does occ ur, the air f ilter will have to be replaced.
3.2.3 CHECK MOWER BLADE
1. Disconnect spark plug wire and secure end away
from plug.
2. Tilt mower up on its rear wheels for access to the blade cap screw. Do not tilt mower with spark plug or carburetor down. See Figure 3.4.
3. Check torque of blade retaining cap screw. Recommended torque should be 30 to 40 ft. lbs. See Figure 3.4.
4. Check blade for sharpness, wear and damage. Refer to Section “Blade Wear Limits”.
FIGURE 3.4
3.3 SERVICE - ANNUA LLY
Perform all maintenance as described in the “Service Schedule” section of this manual.
3.3.1. Engine
Service engine according to engine owner’s manual.
3.3.2. Air Filter Refer to engine owner’s manual for service instructions.
3.3.3. Engine Oil Refer to engine owner’s manual for service instructions.
3.4 STORAGE PROCEDURE
Refer to the Engine Owner’s Manual for directions regarding engine storage preparations. Prepare the m ower for “end of season” storage as follows:
1. Drain fuel from f uel tank and let engine run until all fuel is out of the carburetor.
2. Disconnect and remove the spark plug wire away from spark plug before any other preparations are made!
3. Tape all openings closed to prevent spraying water
into exhaust or air intakes during washing.
4. Tilt mower up on its rear wheels and thoroughly clean the underside of the deck. Do not tilt m ower with spark plug or carburetor down. Scrape away any accumulation of grass with a putty knife and or wire brush.
5. Lubricate all expos ed metal with a light coating of oil to prevent corrosion.
6. On self-propelled models, loosen wing nuts on ground speed control rod before folding handles.
7. Loosen handle knobs. Carefully fold the handles forward, “flexing” the control cables to prevent cable damage.
8. Store the mower in a shed or other dry area, protected from weather.
10
Section 4 - REPAIR & ADJUSTMENTS
FLANGES
WARNING
DO NOT attempt any maintenance, adjustments or service with engine and blade running. STOP engine and blade. Disconnect spark plug wire and secure away from spark plug. Engine and components are HOT. Avoid serious burns, allow sufficient time for all components to cool. Wear heavy leather gloves when handling or working around cutting blades. Blades are extremely sharp and can cause severe injury.
4.1 MOWER BLADE REPLACEMENT
4.1.1. STANDARD BLADE WEAR LIMIT
1. Inspect blade frequently for signs of excessive wear
or damage. See Figure 4.1.
4.1.1A. NINJA BLADE WEAR LIMIT 1A. Inspect blade frequently for signs of excessive
wear or damage. See Figure 4.2.
NEW BLADE
NEW BLADE
WEAR LIMIT (NOTCH STARTS)
DANGEROUS CONDITION ! DO NOT USE ON MOWER ! REPLACE WITH NEW BLADE.
FIGURE 4.1
WEAR LIMIT. CRACKS OR NOTCHES BEGIN TO APPEAR ON TIP
2. Replace the blade if it is badly chipped, bent,
noticeably out of balance or has cracks or notch in either tip. See Figure 4.1 & 4.1A. Replace with new blade.
DO NOT use a cutting blade that shows signs of excessive wear or damage. Refer to Section “MOWER BLADE REPLACEMENT” for proper blade inspection and service procedures.
4.1.2. BLADE SHARPENING
1. Dis connect spark plug wire and secure end away
from plug.
IMPORTANT: DO NOT tip machine with carburetor or spark plug down. Oil from crankcase will saturate the air filter and cause the engine to be hard to start or not start at all. If contamination does occ ur, the air f ilter will have to be replaced.
2. Tilt mower up on its rear wheels. Do not tilt mower with spark plug or carburetor down.
3. Remove blade. See Figure 4.3.
WARNING
BLADE HUB
FLANGE
BLADE
CONE WASHER (Concave Side Up)
MAKE SURE THAT BLADE HUB IS SEATED BETWEEN
CAPSCREW
FIGURE 4.3
DANGEROUS ! DO NOT USE A BLADE IN THIS CONDITION !
FIGURE 4.2
11
Section 4 - REPAIR & ADJUSTMENTS
CLUTCH CABLE
VINYL SPRING
SPRING
EYE
CLUTCH CABLE EYE
BLADE ASSEM
BLY
WARNING
DO NOT attempt any maintenance, adjustments or service with engine and blade running. STOP engine and blade. Disconnect spark plug wire and secure away from spark plug. Engine and components are HOT. Avoid serious burns, allow sufficient time for all components to cool.
4. Sharpen blade on a grinding wheel at an angle of
22 to 28 degrees. DO NOT sharpen blade beyond original cutting edge. See Figure 4.4.
DO NOT SHARPEN BEYOND ORIGINAL CUTTING EDGE
22-28º
1/16” TO 1/8” CLEARANCE
UPPER
LOWER SPRING
CLUTCH CABLE
SPRING HOOK
CABLE
BLADE TIP
END VIEW OF
ORIGINAL CUTTING EDGE
FIGURE 4.4
5. Check blade for balance. If necessary, correct
balance by grinding heavy end of blade.
6. Reinstall blade. See Figure 4.1. Check torque of blade retaining cap screw. Recommended torque should be 30 to 40 ft. lbs.
NOTE: The following sections 4.2 through
4.4 are for self-propelled models only.
4.2 WHEEL DRIVE CONTROL ADJUSTMENT
1. The wheel drive control is properly adjusted when
there is 1/16” to 1/8” clearance between the inside of the spring hook and the inside of the clutch cable eye with the wheel drive control released. See Figure 4.5.
SPRING
FIGURE 4.5
2. To adjust, unhook upper spring from cable eye
and rotate spring in direction required to extend or shorten spring length.
3. Rehook upper spring to cable eye and check clearance. Repeat procedure if required.
NOTE: The vinyl spring cover should be kept over the spring at all times except for adjustments.
4. If the wheel drive control fails to return quickly to the “OFF” position when released, check for binding at the cable holdings located on the side of the right handle. The upper clip should be loc ated 2” below the upper knob; the lower clip should be 4” above the lower knob. The cable should slide freely with the clips installed at these locations.
12
Section 4 - REPAIR & ADJUSTMENTS
SPRING
POSITION
SIXTH
POSITION
BELT
WARNING
DO NOT attempt any maintenance, adjustments or service with engine and blade running. STOP engine and blade. Disconnect spark plug wire and secure away from spark plug. Engine and components are HOT. Avoid serious burns, allow sufficient time for all components to cool.
4.3 DRIVEN DISC SERVICE
If the mower does not propel itself properly, See Figure 4.6. Check for the following problems:
DRIVEN DISC &
POLY-V
DRIVE SPRING
ENGINE DRIVE BELT
DRIVE DISC
FIGURE 4.6
1. Grease on drive disc causing slippage.
2. Broken or disconnected drive spring.
3. Driven disc is out of adjustment.
4. Driven disc rubber ring is worn - does not contact
drive disc properly.
5. Worn Poly-V Belt or engine drive belt. NOTE: If any of the above (1 thru 5) are causing
problems, service as follows:
4.3.1. Cleaning Drive Disc & Driven Disc.
If oil or grease on the drive disc or driven disc is causing slippage, clean discs as follows:
1. Wipe away any oil or grease with a clean cloth.
2. Use either an approved grease solvent or hot,
soapy water to clean drive disc or driven disc.
3. Rinse components with clean water.
4. Dry components with a clean cloth.
4.3.2. Drive Spring Repair/Replacement
If drive spring is loos e, reconnect as shown in Figure
4.7. If spring is broken, replace with new spring.
IMPORTANT: If machine drive system continues slipping see Trouble Shooting section.
4.3.3. DRIVEN DISC ADJUSTMENT
If the drive disc and driven disc are clean and the mower drive is still slipping, adj ust the driven dis c as follows:
1. Place ground speed control in the number six speed position. See Figure 4.8.
MOVE GROUND SPEED CONTROL TO SIX SPEED POSITION
13
USE NEEDLE NOSE PLIERS TO INSTALL DRIVE SPRING
SIXTH SPEED
FIRST
DRIVE
FIGURE 4.7
REYCLING MODEL SHOWN (ROPE START MOUNTED ON RIGHT SIDE OF HANDLE)
FIRST SPEED
FIGURE 4.8
Section 4 - REPAIR & ADJUSTMENTS
EDGE
ROD
HEX NUT
WARNING
DO NOT attempt any maintenance, adjustments or service with engine and blade running. STOP engine and blade. Disconnect spark plug wire and secure away from spark plug. Engine and components are HOT. Avoid serious burns, allow sufficient time for all components to cool.
4.3.3. DRIVEN DISC ADJUSTMENT (Continued From Previous Page)
2. Remove driven disc spring from driven disc
assembly. Loosen connector hex nut. See Figure 4.9.
DRIVEN DISC ASSEMBLY
DRIVE DISC
DRIVEN DISC SPRING
TRANSFER ROD
CONNECTOR
CONNECTOR HEX NUT
FIGURE 4.9
3. Slide driven disc assembly over to 1/8” from outside
edge of drive disc. Maintaining the 1/8” measurem ent, remove any looseness from the linkage. This can be done by holding the transfer rod and applying pressure to the left (as viewed from operators position). Then retighten the connector hex nut secur ely. See Figure
4.10. Move ground speed control to the first speed position, then back to the sixth speed position. Recheck the 1/8” meas urement described previously. Reinstall driven disc spring to driven disc assembly.
14
1/8” MEASUREMENT TO OUTSIDE EDGE OF DRIVE DISC
SLIDE DRIVEN DISC ASSEMBLY TOWARD OUTSIDE
TRANSFER
CONNECTOR
CONNECTOR
DRIVE DISC
OUTSIDE EDGE
FIGURE 4.10
4.3.4. Replacing Rubber Driven Disc Ring
If the rubber ring is badly chunked or worn down to within 1/16” of the metal rim of the driven disc hub, it must be replaced. Install new rubber ring as follows:
1. Using a small flat blade screwdriver, free the clip from the transfer rod. Then remove the transfer rod from the clip and the speed control rod. See Figure
4.11.
CONNECTOR CLIP
TRANSFER ROD
SPEED CONTROL ROD
FIGURE 4.11
(Continued On Next Page)
Section 4 - REPAIR & ADJUSTMENTS
BEARING
ASSEMBLY
WARNING
DO NOT attempt any maintenance, adjustments or service with engine and blade running. STOP engine and blade. Disconnect spark plug wire and secure away from spark plug. Engine and components are HOT. Avoid serious burns, allow sufficient time for all components to cool.
4.3.4. Replacing Rubber Driven Disc Ring (Continued From Previous Page)
2. Using needle nose plier s, unhook the drive spring
and slide the driven disc assem bly off the hex shaft. See Figure 4.12.
3. Remove the f ive machine screws and plate, which secure the rubber ring to the driven disc hub. See Figure 4.13.
4. Install new rubber ring.
5. Reverse above procedures for reassembly and
installation.
DRIVE DISC
FIGURE 4.12
DRIVEN DISC HUB
MACHINE SCREWS
RUBBER RING
PLATE
FIGURE 4.13
4.3.5. Replacing Bearing In Driven Disc Assembly
If the driven disc bearing fails, remove the driven disc assembly and replace bearing as follows:
1. Using a small flat blade screwdriver, free the clip from the transfer rod. Then remove the transfer rod from the clip and the speed control rod. See Figure
4.11.
2. Using needle nose pliers, unhook the drive spring and slide the driven disc assem bly off the hex shaft. See Figure 4.12.
3. Remove snap ring that secures driven disc hub to thrust plate. See Figure 4.14.
THRUST PLATE
REMOVE FOUR MACHINE SCREWS
DRIVEN DISC PLATE
4. Slide the hub assembly out of the bearing.
5. Remove the four screws.
6. Remove bearing and replace with new bearing.
7. Reassemble components in reverse order.
SHIM
WASHER SNAP RING
DRIVEN DISC HUB
RUBBER DISC
FIGURE 4.14
15
Section 4 - REPAIR & ADJUSTMENTS
LOCK NUT
WHEEL BRACKET
ARM
DECK
WARNING
DO NOT attempt any maintenance, adjustments or service with engine and blade running. STOP engine and blade. Disconnect spark plug wire and secure away from spark plug. Engine and components are HOT. Avoid serious burns, allow sufficient time for all components to cool.
4.3.6. Replacement Of Bearing On Pulley End Of Hex Shaft
To replace the bearing on the pulley end of the hex shaft, proceed as follows:
1. Hold the hex shaft with an adjustable wrench held next to the pulley.
2. Remove the 3/8” hex lock nut which is located on the outside of the right wheel bracket. See Figure 4.15.
3. Remove holder, O-ring and bearing.
4. Install new bearing.
5. Carefully install new O-ring over the outside of the
new bearing.
6. Install bearing holder and secure with screws.
7. Install 3/8” hex lock nut.
BALL BEARING
“O” RING
3/8”
BALL BEARING HOLDER
FIGURE 4.15
4.4. BELT SERVICE
On self-propelled mowers, the engine belt transmits power from engine to drive disc. The drive disc powers the poly-v belt which engages the transmission that powers the rear wheels. Should these belts becom e worn, they could cause slippage which would impair mower perform ance. The condition of the engine belt and poly-v belt should be checked after every 25 hours of mower operation.
4.4.1. Engine Drive Belt Replacement
1. Empty the fuel tank.
2. Unhook the idler spring from the right rear wheel
bracket. See Figures 4.16.
RIGHT REAR
SLOT IN
IMPORTANT: DO NOT tip machine with carburetor or
spark plug down. Oil f rom crankcase will saturate the air filter and cause the engine to be hard to start or not start at all. If contamination does occ ur, the air f ilter will have to be replaced.
3. Remove the driven disc. Refer to Section “Replacing Driven Disc Rubber Ring” for driven disc removal procedure.
4. Do not tilt mower with spark plug or carburetor down. Tilt mower up on its rear wheels and rem ove blade and blade hub. Assistance from another person may be necessary to hold mower in the tilted position.
IDLER
DRIVE DISC
DRIVE BELT
ENGINE DRIVE PULLEY
TOP VIEW OF ENGINE BELT ROUTING
FIGURE 4.16
(Continued On Next Page)
IDLER SPRING
16
Section 4 - REPAIR & ADJUSTMENTS
LOCKWASHER
SHOWN)
BRACKET
PULLEY
WARNING
DO NOT attempt any maintenance, adjustments or service with engine and blade running. STOP engine and blade. Disconnect spark plug wire and secure away from spark plug. Engine and components are HOT. Avoid serious burns, allow sufficient time for all components to cool.
4.4.1. Engine Drive Belt Replacement (Continued from Previous Page)
5. Hold the slotted end of the drive disc bolt with a
screwdriver and remove the nut and internal tooth lock washer. See Figure 4.17.
DRIVE DISC
RIGHT WHEEL BRACKET
PULL SPRING THROUGH LARGE HOLE & HOOK INTO SMALL HOLE
IDLER SPRING
SLOT IN END OF DRIVE DISC BOLT
BUSHING
IDLER ARM
IDLER SPRING
DECK BRACKET (PARTIALLY
POSITION SCRAPER TO CLEAR “V” OF PULLEY
SPACER
INTERNAL TOOTH
NUT
FIGURE 4.17
6. Lift the drive disc off the idler arm and remove
worn belt.
7. Loop one end of new belt over engine pulley and insert the other end through slot in deck. See Figure
4.17.
8. Loop the belt around the pulley on the bottom of the drive disc.
9. Reinstall drive disc and retaining hardware.
10. Reinstall blade hub and cutter blade. Recom-mended
torque for blade cap screw is 30 to 40 ft. lbs.
11. Use a stiff wire, suc h as a coat hanger, with a hook fashioned on one end to pull the hooked end of the idler spring through the large hole in the right wheel bracket. See Figure 4.18.
12. Reinstall the driven disc assembly.
FIGURE 4.18
4.4.2. Transmission Poly-V Belt Replacement
1. Remove the driven disc. Refer to Section on
“Replacing Driven Disc Rubber Ring” for procedure.
2. Note the routing of the old belt around the three pulleys before removing it. See Figure 4.19.
3. Place new Poly-V Belt over end of hex shaft and onto driven pulley.
4. Work belt onto top of idler pulley.
5. Twist belt sideways and pull it upward between
the differential bracket and drive pulley and then down into the pulley groove. Make sure the Poly-V Belt is above belt guide. See Figure 4.19.
DRIVEN PULLEY
HEX SHAFT
BELT GUIDE
IDLER PULLEY
ROUTING OF POLY-V BELT
DIFFERENTIAL
POLY-V BELT
DRIVE
FIGURE 4.19
17
TROUBLESHOOTING
Mower Will Not Move
SNAPPER
PROBLEM PROBABLE CAUSE CORRECTIVE ACTION
Engine Will Not Start 1. Fuel tank empty. 1. Fill fuel tank with fresh fuel.
Using Recoil Starter 2. Engine needs choking or priming. 2. Choke/Prime. Check Engine Manual for
3. Spark plug wire disconnected. 3. Place spark plug wire onto spark plug.
Engine Stalls or Stops
After Running
2. Choke control in the “CHOKE” position. 2. Move choke control to “OFF” position.
3. Fuel tank empty. 3. Fill with fuel to proper level.
4. Engine air pre-cleaner and or air cleaner dirty. 4. Clean free of all debris.
5. Spark plug defective or gap set improperly. 5. Service spark plug.
6. Water, debris or stale fuel in fuel system. 6. Drain and clean fuel system.
Engine Loses Power 1. Engine air pre-cleaner or air cleaner dirty 1. Clean or replace filters.
2. Spark plug faulty. 2. Service spark plug.
3. Water, debris or stale fuel in fuel system. 3. Drain and clean fuel system.
Excessive Vibration 1. Damaged, out of balance or bent mower blade. 1. Service mower blade.
2. Loose blade components. 2. Service and tighten loose parts.
3. Loose or missing air lift (if equipped). 3. Replace air lifts. Tighten to proper torque.
4. Lumpy or frayed belt 4. Replace belt.
5. Bent Idler pulley 5. Replace pulley.
Loss Of Traction
(Self-Propelled Models)
Cutting Grass
Improperly
Poor Grass Discharge
Oil Leaking
1. Blade control is released or is not being held securely against handle.
1. Damaged transmission
2. Traction drive belt requires replacement 2. Replace traction drive belt.
3. Driven disc slipping 3. Clean or replace driven disc.
1. Cutting height too low or high. 1. Adjust cutting height.
2. Engine speed too slow. 2. Move engine speed control to “FAST” position.
3. Forward ground speed too fast. 3. Move ground speed control to a slower speed.
4. Terraced cut, side to side. 4. Adjust height of cut with height adjust levers.
5. Excessive deck pitch, front to rear. 5. Adjust height of cut with height adjust levers.
6. Cutting blade dull or damaged. 6. Sharpen cutting edges or replace blade.
1. Engine speed too slow. 1. Move engine speed control to “FAST” position.
2. Forward speed too fast. 2. Move ground speed control to a slower speed.
3. Grass is wet. 3. Mow when grass is dry.
4. Excessively worn or damaged blade. 4. Service mower blade.
5. Build up of grass clippings and debris under deck. 5. Clean deck.
6. Improper blade installed on deck.
7. Blade installed improperly on deck. 7. Install blade properly.
1. Leaking engine case.
Instructions.
1. Blade control should be held securely against handle at all times during operation of mower.
1. Contact authorized
6. Install proper SNAPPER blade.
1. Contact authorized SNAPPER dealer.
2. Check and tighten drain plug.
3. Make sure dip stick or oil filler cap is securely in place.
dealer.
18
Parts Manual for 21” Steel Deck Walk Behind Mower
ITEM SERVICE PERFORMED
Engine Oil
Check Oil Level Page 6
SERVICE SCHEDULE
REF. EACH
USE 5 HRS
X
25
HRS
50
HRS
100
HRS
EACH
SEASON
Air Pre-Cleaner
Air Cleaner Spark Plug
Engine Cooling
System
Drive Belts
Mower Blade
Mower Deck
Transmission
Grease
Drive Disc
*Change oil every 25 hours when operating under heavy load or high temperatures. **Clean more often under dusty conditions or when air debris is present
4.5. MAINTENANCE/REPLACEMENT PARTS
Initial Oil Change Page 9 Periodic Oil Change Page 10
Clean Sponge Element Engine Manual
& Page 10.
Clean or Replace Engine Manual. Replace Engine Manual. Clean Shroud & Fins Engine Manual
Check For Wear And Tension Check For Wear, Damage & Replacement Clean Debris Accumulation Check Grease Level Pages 9
Periodic Grease Check Pages 10 Check for Wear Damage
& Replacement
Page 16-17 Page 11-12 Page 10
Page 12-15
X X*
X**
X** X X**
X X X
X
X
X X
X X
MAINTENANCE PARTS
Engine Speed Control (Briggs Engines) 2-9036 Engine Speed Control (Tecumseh 4 Cycle Engine) 2-9052 Engine Speed Control (Tecumseh 2 Cycle Engine) 2-4139 Blade Control Cable (See Parts Manual) -­Clutch Pull Cable (See Parts Manual) -­Cutter Blade (European Models Only) 1-9795 Cutter Blade (Mulching) 1-7168 Cutter Blade (Not Air Lift Compatible) 2-6691 Cutter Blade (Ninja - Quad Edge) 2-6407 Wheel Drive Pulley to Transmission Pulley Belt 1-2354 Engine to Drive Disc Belt 1-2353 Rubber Drive Tire 2-3364
06059
Series 12, 14, 15 & 16
19
3 YEAR LIMITED WARRANTY
For three (3) years from pur chase date f or the original pur chaser 's res idential, non-com m erc ial use, SNAPPER, through any authorized SNAPPER dealer will replace, free of charge (except for taxes where applic able), any part or parts found upon examination by the factory at McDonough, Georgia, to be defective in material or workmanship or both.
For ninety (90) days from purchase date for the or iginal purchaser's commercial, rental, or other non-residential use, SNAPPER, through any authorized SNAPPER dealer will replace, free of charge, any part or parts found upon examination by the factory at McDonough, Georgia, to be defective in material or workmanship or both.
All transportation costs incurred by the purchaser in submitting material to an authorized SNAPPER dealer for replacement under this warranty must be paid by the purchaser.
This warranty does not apply to engines and their components , and batteries, as these item s are warranted separately. This warranty does not apply to parts that have been damaged by accident, alteration, abuse, improper lubrication, normal wear, or other cause beyond the control of SNAPPER. This warranty does not cover any machine or com ponent part that has been altered or modified changing safety, performance, or durability.
Batteries have a one (1) year prorated warranty period with free replacement if requir ed during the first ninety (90) days from the original purchas e date. SNAPPER will not be responsible for any installation cost incurred. T he battery warranty only covers original equipment batteries and does not cover dam age to the battery or machine caused by neglect or abuse, destruction by fire, explosion, freezing, overcharging, improper maintenance, or use of improper electrolyte.
There is no other express warranty.
DISCLAIMER OF WARRANTY Implied warranties, including those of merchantability and fitness for a particular purpose, are limited to three (3) years from purchase date for the original purchaser's residential or other non-commercial use, and ninety (90) days from purchase for the original purchaser's commercial, rental or other non-residential use, and to the extent permitted by law, any and all implied warranties are excluded. This is the exclusive remedy. Liabilities for consequential damages, under any and all warranties are excluded.
Some states do not allow limitations on how long an implied warranty lasts, or do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
WARNING: THE USE OF REPL ACEMENT PARTS OTHER THAN GENUINE SNAPPER PARTS MAY IMPAIR THE SAFETY OF SNAPPER PRODUCTS AND WILL VOID ANY LIABILITY AND WARRANTY BY SNAPPER ASSOCIATED WITH THE USE OF SUCH PARTS.
IMPORTANT: Please fill out the attached SNAPPER Product Registration Card immediately and mail to:
Snapper’s Product Registration Ce nter, P.O. Box 1379, McDonough, Georgia 30253
20
PRIMARY MAINTENANCE
21
PRIMARY MAINTENANCE
22
PRIMARY MAINTENANCE
23
PRIMARY MAINTENANCE
24
NOTES
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25
NOTES
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26
NOTES
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27
Safety Instructions & Operator’s Manual for
21” STEEL DECK WALK BEHIND MOWERS SERIES 12 & 14
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. If you have any questions about your Snapper product, contact your local authorized Snapper dealer or contact Snapper Customer Service at Snapper, McDonough, GA. 30253. Phone: (1-800-935-2967).
WARNING:
COPYRIGHT © 1999 SNAPPER INC. ALL RIGHTS RESERVED
The engine exhaust from this product cont ains chemicals known to the Stat e of California to cause cancer, birth defects or other reproductive harm.
MANUAL No. 3-5743 (REV. 2, 9/2/99)
28
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