Snapper CP216017RV User Manual

Safety Instructions & Operator’s Manual for
21” STEEL DECK
WALK MOWERS
COMMERCIAL MODEL
SERIES 17
PROPELLED
CP216017RV CP215017KWV CP215017HV CP215517HV
MODEL NUMBER EXPLANATION
C P 21 60 17 R V
MODEL DESIGNATION ENGINE OPTIONS SELF-PROPELLED ENGINE TYPE CUTTING WIDTH SERIES DESIGNATION ENGINE HORSE POWER
C – Commercial Model P – Self Propelled Model 17 -- Series Designation
21 – 21” Cutting Width R – Robin Engine H - Honda Engine KW - Kawasaki Engine
50 = 5.0 HP (Engine Horse Power) 55 - 5.5 HP (Engine Horse Power) V – Over Head Valve 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 © 2002 SNAPPER INC. ALL RIGHTS RESERVED
MANUAL No. 7-4932 (I.R. 6/07/02)
IMPORTANT SAFETY INSTRUCTIONS
WARNING: This powerful cuttin g machine is capable of amputating hands and feet and can throw object s that can cause injury and damage! Failure to comply with th e 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. 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 w hen machine 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. Slo pes are a major factor related to slip and fall accidents, which can result in severe injury. All slopes require extra caution. 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 grass 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. Dat a indicates that operators age 60 an d above, 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 with extra care. Fuels are flammable and vapors are explosive. Use only an approv ed 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 in jury if thrown by blade or interfere with mowing. 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 devices frequently for proper operation and location.
8. Make sure all safety decals are clearly legible. Replace if damaged.
9. Protect yourself when mowing 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 discharge area wh ile 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 foreign object or if mower vibrates abnormally, STOP the engine, disconnect and secure spark plug wire. Inspect the 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 r eason.
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 mower and en gine 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 co tter 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 plug and secure wire away from spark plug to prevent accidental starting.
7. DO NOT change engine governor speed settings or overspeed engine.
8. Check grass b ag assemb ly frequent ly for w ear o r deterioration to avoid thrown objects and exposure to moving parts. Replace w ith new bag if loose seams or tears are evident. Replace 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 .................................................................6-9
Pre-start Checklist ............................................................................................... 6
Starting & Stopping Engine & Blade............................................................... 6-7
Starting & Stopping Wheel Drive ....................................................................... 7
Handle Height Adjustment.................................................................................. 8
Cutting Height Adjustment................................................................................ .8
Recycling Operation............................................................................................ 9
Installation of Grass Catcher.............................................................................. 9
Removing and Dumping Grass Catcher............................................................ 9
SECTION 3 - MAINTENANCE INSTRUCTIONS ........................................................ 10-12
Change Engine Oil........................................................................................10-11
Check Transmission Grease............................................................................. 11
Check Mower Blade........................................................................................... 11
Check Engine Drive Belt ................................................................................... 12
Check Transmission Poly-V Belt...................................................................... 12
Service – Annually............................................................................................. 12
Engine.............................................................................................................. 12
Air Filter........................................................................................................... 12
Engine Oil........................................................................................................ 12
Storage Procedure............................................................................................. 12
SECTION 4 - ADJUSTMENTS AND REPAIR.............................................................13-19
Mower Blade Replacement ............................................................................... 13
Blade Sharpening ..............................................................................................13
Wheel Drive Control Adjustment...................................................................... 14
Driven and Drive Disc Service.....................................................................14-19
Cleaning Drive Disc and Driven Disc....................................................... 14-15
Drive Spring Repair/Replacement................................................................. 15
Driven Disc Adjustment............................................................................15-16
Driven Disc Replacement..........................................................................16-17
Driven Disc Bearing Replacement................................................................ 17
Hex Shaft Bearing Replacement ................................................................... 18
Belt Service ...................................................................................................18-19
Engine Drive Belt Replacement ...............................................................18-19
Transmission Poly-V Belt Replacement....................................................... 19
TROUBLESHOOTING ..................................................................................................... 20
SERVICE SCHEDULE...................................................................................................... 21
Maintenance/Replacement Parts...................................................................... 21
WARRANTY..................................................................................................................... 22
PRIMARY MAINTENANCE......................................................................................... 23-26
PRODUCT REGISTRATION FORM ................................................................................ 27
The figures and illustrations in this manual are provided for reference only and may differ from your specific model. Contact your Snapper dealer if you have questions.
IMPORTANT
4
CONTROL
CONTROL
CONTROL
HANDLE
BAG
LATCH
ADAPTER
CAP
Section 1 - FAMILIARIZATION
WHEEL DRIVE
ROPE START
GRASS
REAR HEIGHT ADJUSTMENT
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 mess ages on the mower and attachments before operating the mower.
ENGINE SPEED
BLADE
GROUND SPEED
GRASS BAG
FIGURE 1.1
FUEL FILLER
5
ENGINE
SPEED
CONTROL
“CHOKE
“FAST”
SLOW
FUEL VALVE (HIDDEN IN THIS VIEW)
FRONT HEIGHT ADJUSTING LATCHES
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 becom e 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 before operating and keep both handy for future reference.
Section 2 - OPERATING INSTRUCTIONS
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 plac e and securely tightened.
2.1.2. Check blade control and wheel drive control to insure they work freely. See Figure 2.1.
WHEEL DRIVE CONTROL
BLADE CONTROL
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
1. Turn fuel valve to on. See Figure 2.4. Move
engine speed control to the “choke” pos ition. The choke should not be required to restart a hot engine. See Figure 2.3.
NOTE: Stop the engine (and blade) by releasing the
blade control.
WHEEL DRIVE CONTROL
BLADE 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.
FULL MARK (DO NOT OVER FILL)
FIGURE 2.2
2.1.5. Add fuel to tank after pushing the mower
outside where fumes can safely dissipate. Make sure cap is tightened after refueling. Refer to Engine Owners Manual for specifications.
ENGINE SPEED CONTROL (SHOWN IN CHOKE POSI TION)
FIGURE 2.3
2. Pull blade control against handle.
3. Pull rope start handle to crank engine.
4. After engine starts, move engine speed control
away from the choke position to the “Fast” (Rabbit) position. See Figure 2.3.
5. Allow a brief warm-up until engine runs smooth.
6
Section 2 - OPERATING INSTRUCTIONS
SIXTH
2.2 STARTING & OPERATION
2.2.1. ENGINE & BLADE (Choke Models)
1. Move f uel shut off valve to the “ON” position. See
Figure 2.4.
NOTE: Stop the engine (and blade) by releasing the
blade control.
HONDA
FUEL SHUT OFF VALVE SHOWN IN THE “ON” POSITION
KAWASAKI
FUEL SHUT OFF VALVE SHOWN IN THE “ON” POSITION
FIGURE 2.4
2. Move engine speed control to the “Choke”
position. See Figure 2.5.
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.
2.2.2. PROPELLING MOWER (Self Propelled Models)
1. Move ground speed control to the desired
speed position. See Figure 2.6.
2. 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 2.6.
2.3 STOPPING
Stop engine and blade by releasing the blade control. Stop forward motion of mower by releasing the wheel drive control.
7
MOVE CONTROL AGAINST HANDLE TO ENGAGE WHEEL DRIVE
FIGURE 2.5
WHEEL DRIVE CONTROL
(FAST) SIXTH SPEED POSITION
(SLOW)
FIRST
FIRST SPEED POSITION
FIGURE 2.6
MOVE TO CHOKE POSITION
ENGINE SPEED CONTROL
MOVE GROUND SPEED CONTROL TO DESIRED
BLADE CONTROL
Section 2 - OPERATING INSTRUCTIONS
HEIGHT
1
HEIGHT
6
1
6
2.4 HANDLE HEIGHT ADJUSTMENT
The height of the mower handle can be adjusted as follows:
1. Loosen the nuts on each lower handle as shown in Figure 2.7.
LOWER HANDLE
HIGHER
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 2.9.
LATCH POSITION
LOWER
LOOSEN LOWER NUTS ON EACH LOWER HANDLE
FIGURE 2.7
IMPORTANT! Some models are equipped with braces
that attach to the lower handle brackets and must be loosened before handle height can be adjusted.
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.
WARNING
STOP engine and mower blade by 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 2.8.
LOWEST CUTTING
2
3
4
5
FIGURE 2.8
LATCH
HIGHEST CUTTING
CUTTING HEIGHT SETTINGS
FIGURE 2.9
8
Section 2 - OPERATING INSTRUCTIONS
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.
2.6 RECYCLING OPERATION - OPTIONAL ACCESSORY
Recycling operation requires optional accessory. NOTE: For best recycling results, cut up to a m aximum
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 INSTALLATION of GRASS CATCHER
Position grass bag between handles. See Figure
2.10. Install grass catcher by sliding connector over flange of adapter. Attach grass bag hooks over middle handle cross bar. See Figure 2.11.
LOWER HANDLES
HANDLE
BAG CONNECTOR
ADAPTER FLANGE
FIGURE 2.10
HOOK BAG HANDL E OVER LOWER HANDLES
SLIDE CONNECTOR OVER END OF ADAPTER FLANGE
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.
2.8 REMOVING and DUMPING GRASS CATCHER
1. Grasp bag connector and bag handle as
shown. See Figure 2.10.
2. First, lift up on bag handle, removing it fr om the mower handle. Then lift up on bag connector removing it from the adapter flange.
3. Dump bag by pulling bag slider off of Z-Fold at rear of bag, opening bag.
4. To close bag, fold rear of bag into Z-shape, keeping edges aligned. Note: an illustration of folding the Z-shape is attached to the bag.
5. Grasp the edge of the Z-fold, and while holding the slider; pull the Z-fold fully into the slider. See Figure 2.12.
FIGURE 2.11
WARNING
GRASP SLIDER. PULL Z­FOLD INTO SLIDER
PULL
FIGURE 2.12
9
Section 3 - MAINTENANCE
PLUG
3.1 INTRODUCTION
To retain the quality of the mower, use genuine SNAPPER replacement parts only. Contact a local SNAPPER dealer for parts and ser vice assis tance. 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. Wear heavy leather gloves when handling or working around cutting blades. Blades are extremely sharp and can cause severe injury.
IMPORTANT: Drain fuel tank before tipping machine.
DO NOT tip machine with carbur etor 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 occur, the air filter will have to be replaced.
1. Refer to Engine Manual for proper oil specifications, procedures and proper service intervals.
2. For simplest/cleanest oil change, loosen lower handle nuts. Remove two of the four bolts and f old handles. Stand mower up on lower handle brackets as shown in Figure 3.1A. Drain oil through dipstick tube into a container. Allow sufficient time for all oil to drain.
3. Alternate Oil Drain: Procedure: The Kawasaki, Robin and Honda engines are equipped with oil drain plugs located above the deck on the right side of the engine. See Figure 3.1.B, Figure
3.1.C and Figure 3.1D. Remove oil drain plug to drain oil. Allow sufficient time for all oil to drain. Reinstall plug and tighten securely.
4. Dispose of drain oil properly.
5. Fill engine with oil as specified in Engine
Manual. Do Not overfill.
6. Robin 4-Cycle engines are equipped with an oil filter. Refer to Engine Manual for corr ect replac em ent intervals. NOTE: Check specific model engine owner’s manual for changing engine oil procedure and oil specifications.
10
OIL DRAIN PLUG
OIL DRAIN
FIGURE 3.1A
ROBIN ENGINE
FIGURE 3.1B
KAWASAKI ENGINE
FIGURE 3.1C
(Continued On Next Page)
OIL FILTER
Section 3 – MAINTENANCE
PLUG
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.
3.2 SERVICE - AFTER FIRST 5 HOURS
3.2.1. CHANGE ENGINE OIL (Continued From Previous Page)
3.2.2. CHECK GREASE LEVEL IN TRANSMISSION
1. Roll machine and remove transmission fill plug.
See Figure 3.2.
FILL PLUG
HONDA ENGINE
OIL DRAIN
FIGURE 3.1D
FIGURE 3.2
2. Look into plug hole. If liquid
grease IS NOT visible on the input gear (the small gear below the plug hole), add an amount, to cover gear, of Snapper “00” grease. See Figure 3.2.
NOTE: Snapper “00” Grease (Part No. 2-9443) is available at your SNAPPER dealer. Do not spill grease or oil on surface 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 !
FIGURE 3.3
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 f or 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 40 ft. lbs. See Figure 3.4.
4. Check blade for s harpness, wear and damage. Refer to Section “Blade Wear Limits”.
11
Section 3 - MAINTENANCE
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.
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 40 FT.
FIGURE 3.4
3.3 SERVICE - ANNUALLY
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 mower for “end of season” storage as follows:
1. Drain fuel from fuel 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 mower with spark plug or carburetor down. Scrape away any accumulation of grass with a putty knife and or wire brush.
5. Lubricate all exposed metal with a light coating of oil to prevent corrosion.
6. Store the mower in a shed or other dry area, protected from weather.
12
Section 4 - REPAIR & ADJUSTMENTS
BLADE.
FLANGES
BLADE 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. 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.
NEW BLADE
WEAR LIMIT (NOTCH STARTS)
DANGEROUS CONDITION ! DO NOT USE ON MOWER ! REPLACE WITH NEW
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 4.3.
DO NOT SHARPEN BEYOND ORIGINAL CUTTING EDGE
BLADE HUB
FLANGE
BLADE
CONE WASHER (Concave Side Up)
CAPSCREW
FIGURE 4.2
22-28º
MAKE SURE THAT BLADE HUB IS SEATED BETWEEN
FIGURE 4.1
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. Replace with new blade.
WARNING
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. Disconnect spark plug wire and secure end
away from plug.
2. Tilt mower up on its rear wheels. Do not tilt mower with spark plug or carburetor down.
3. Remove blade. See Figure 4.2.
BLADE TIP
END VIEW OF
ORIGINAL CUTTING EDGE
FIGURE 4.3
5. Check blade for balance. If necessary, correct
balance by grinding heavy end of blade.
6. Reinstall blade. See Figure 4.2. Check torque of blade retaining cap screw. Recommended torque should be 30 to 40 ft. lbs.
13
Section 4 - REPAIR & ADJUSTMENTS
CLUTCH CABLE
VINYL SPRING
CLEARANCE
SPRING
EYE
CLUTCH CABLE EYE
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.
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 4.4.
DRIVEN DISC & RUBBER RING
4. If the wheel drive control f ails to return quick ly to
the “OFF” position when released, check for binding at the cable clips located on the side of the right handle. The upper clip should be located 2” below the upper bolt; the lower clip should be 4” above the lower bolt. The cable should slide f reely with the clips installed at these locations.
4.3 DRIVEN DISC SERVICE
If the mower does not propel itself properly, See Figure 4.5. Check for the following problems:
DRIVE SPRING
DRIVE DISC
POLY-V-BELT
1/16” TO 1/8”
UPPER
LOWER SPRING
CABLE
SPRING
CLUTCH CABLE
SPRING HOOK
FIGURE 4.4
2. To adjust, unhook upper spring f rom cable eye
and rotate spring in direc tion 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.
ENGINE DRIVE BELT
FIGURE 4.5
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:
(Continued on next page)
14
Section 4 - REPAIR & ADJUSTMENTS
FIRST
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.
4.3.1. Cleaning Drive Disc & Driven Disc.
If oil or greas e 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 loose, reconnect as shown in Figure 4.6. If spring is broken, replace with new spring.
IMPORTANT: If machine drive system continues slipping see Trouble Shooting section.
USE NEEDLE NOSE PLIERS TO INSTALL DRIVE SPRING
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 disc as follows:
1. Place ground speed control in the number six speed position. See Figure 4.7.
2. Remove driven disc spring from driven disc assembly. Remove transfer rod connector nut and remove ball joint/transfer rod from driven disc assembly anchor point. See Figure 4.8.
MOVE GROUND SPEED CONTROL TO SIXTH
SIXTH
FIGURE 4.7
DRIVEN DISC ASSEMBLY
DRIVE DISC
DRIVE SPRING
DRIVEN DISC SPRING
BALL JOINT
ANCHOR
TRANSFER ROD
FIGURE 4.6
CONNECTOR NUT
(Continued On Next Page)
15
POINT
FIGURE 4.8
Section 4 - REPAIR & ADJUSTMENTS
ROD
ROD
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.
3. Slide driven disc assembly over to 1/8” from
outside edge of drive disc. Maintaining the 1/8” measurement, remove any misalignment from the transfer rod linkage and the driven disc assembly anchor point. This can be done by loosening nut and rotating the transfer rod ball joint clockwise on the transfer rod until alignment with the driven disc assembly anchor point is achieved. Retighten ball joint nut. Insert ball joint into anchor point and reinstall the connector hex nut and tighten securely. See Figure 4.9. Move ground speed control to the first speed position, then back to the sixth speed position. Recheck the 1/8” meas ur ement described previously. Reinstall driven disc spring to driven disc assembly.
1/8” MEASUREMENT TO
SLIDE DRIVEN DISC ASSEMBLY TOWARD OUTSIDE EDGE
TRANSFER
CONNECTOR HEX NUT
ROTATE BALL JOINT CLOCKWISE
FIGURE 4.9
OUTSIDE EDGE OF DRIVE DISC
DRIVE DISC
OUTSIDE EDGE
4.3.4. Replacing Driven Disc Rubber Ring
If the rubber ring is badly chunked or worn down to within 1/16” of the metal rim of the driven dis c 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 4.10.
CONNECTOR CLIP
TRANSFER ROD
SPEED CONTROL
REINSTALLED CLIP AND TRANSF ER ROD
CONNECTOR CLIP
TRANSFER ROD
SPEED CONTROL ROD
FIGURE 4.10
16
Section 4 - REPAIR & ADJUSTMENTS
BEARING
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 Driven Disc Rubber Ring (Continued From Previous Page)
2. Using needle nose pliers, unhook the drive
spring and slide the driven disc assembly off the hex shaft. See Figure 4.11.
3. Remove the five machine screws and plate, which secure the rubber ring to the driven disc hub. See Figure 4.12.
4. Install new rubber ring.
5. Reverse above procedures for reassembly and
installation.
DRIVEN DISC ASSEMBLY
FIGURE 4.11
DRIVEN DISC HUB
MACHINE SCREWS
RUBBER RING
PLATE
FIGURE 4.12
4.3.5. Replacing Bearing In Driven Disc
If the driven disc bearing fails, remove the driven disc assembly and replace bearing as follows:
1. Remove snap ring. See Figure 4.13.
THRUST PLATE
REMOVE FOUR MACHINE SCREWS
DRIVEN DISC PLATE
2. Slide the hub assembly out of the bearing.
3. Remove the four screws.
4. Remove bearing and replace with new bearing.
5. Reassemble components in reverse order.
SHIM
WASHER SNAP RING
DRIVEN DISC HUB
RUBBER DISC
FIGURE 4.13
17
Section 4 - REPAIR & ADJUSTMENTS
LOCK 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.
4.3.6. 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 4.14.
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 4.14
4.4. BELT SERVICE
On these mowers, the engine belt transm its 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 become worn, they could cause slippage, which would impair mower perf orm ance. T he 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 (Stretch Type Belts)
1. Empty the fuel tank.
2. Note the belt routing in Figure 4.15. There is no
idler pulley on these models to disconnect. See Figure 4.15.
ENGINE DRIVE PULLEY
DRIVE BELT
DRIVE DISC
TOP VIEW OF STRETCH TYPE BELT ROUTING
FIGURE 4.15
(Continued On Next Page)
18
Section 4 - REPAIR & ADJUSTMENTS
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 (Stretch Type Belts)
(Continued From Previous Page) IMPORTANT: Drain fuel tank before tipping machine.
DO NOT tip machine with carburetor or spar k 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 occur, the air filter will have to be replaced.
3. Remove the driven disc. Refer to Section “Replacing Rubber Driven Disc Ring” for driven disc assembly removal procedure.
4. Tilt mower up on its rear wheels and remove blade and blade hub. Assistance from another person may be necessary to hold mower in the tilted position.
5. Hold the slotted end of the drive disc bolt with a screwdriver and remove the nut and internal tooth lock washer. See Figure 4.16.
6. Remove the belt cover located under deck.
7. Lift the drive disc up and remove worn belt.
8. Loop one end of new belt over engine pulley and
insert the other end through slot in deck. See Figure 4.15.
9. Loop the belt ar ound the pulley on the bottom of the drive disc.
10. Reinstall drive disc and retaining hardware. IMPORTANT: 1) The s quare shoulder of the drive
disc bolt must fit into the square hole of the bushing. 2) The square end of bushing must fit into the bracket slot.
11. Reinstall belt cover and tighten bolts securely.
12. Reinstall blade hub and cutter blade.
Recommended torque for blade cap screw is 30 to 40 ft. lbs.
SLOT IN END OF DRIVE DISC BOLT
DECK BRACKET (PARTIALLY S HO WN)
4.4.2. Transmission Poly-V Belt Replacement
1. Remove the driven disc. Refer to Section
Replacing Driven Disc Rubber Ring” for procedure.
2. Note the routing of the old belt around the three pulleys before removing it. See Figure 4.17.
DRIVE PULLEY
HEX SHAFT
BELT GUIDE
3. Place new Poly-V Belt over end of hex shaft
and onto driven pulley.
4. Work belt onto top of idler pulley.
5. T wist 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 4.17.
PULLEY POSITION
FIGURE 4.16
IDLER PULLEY
ROUTING OF POLY-V
DIFFERENTIAL
POLY-V BELT
FIGURE 4.17
DRIVE DISC
BUSHING
BOLT RETAINER
INTERNAL TOOTH LOCKWASHER
NUT
DRIVEN
19
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.
4. Honda & Kawasaki Engines Only – Fuel Shut-Off in
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.
7. Honda & Kawasaki Engines Only – Fuel Shut-Off in
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 blades. 1. Service mower blade(s).
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.
Loss Of Traction
(Self-Propelled Models)
Cutting Grass
Improperly
Poor Grass Discharge
Oil Leaking
the “OFF” position
1. Blade control is released or is not being held securely against handle.
the “OFF” position
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(s) dull or damaged. 6. Sharpen cutting edges or replace blade(s).
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(s). 4. Service mower blade(s)
5. Build up of grass clippings and debris under deck. 5. Clean deck.
6. Improper blade(s) installed on deck.
7. Blade(s) installed improperly on deck. 7. Install blades properly.
1. Leaking engine case.
20
Instructions.
4. Turn Fuel Shut-Off to “ON” position
1. Blade control should be held securely against handle at all times during operation of mower.
7. Turn Fuel Shut-Off to “ON” position
1. Contact authorized
6. Install proper SNAPPER blades.
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.
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
Fuel Filter
Engine Cooling
System
Drive Belts
Mower Blades
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. 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 10
Periodic Grease Check Pages 10 Check for Wear Damage
& Replacement
Page 17-18 Page 12 Page 6 & 11
Page 13-16
X X*
X**
X** X X X**
X X X
X
X
X X
X X
MAINTENANCE PARTS
Engine Speed Control (Robin 4 Cycle Engine) 7-4450 Engine Speed Control (Kawasaki Engine) 7-4449 Engine Speed Control (Honda Engine) 7-4829 Blade Control Cable (Robin 4 Cycle Engine) 7-4448 Blade Control Cable (Kawasaki Engine) 7-3444 Blade Control Cable (Honda Engine) 7-4830 Clutch Pull Cable (See Parts Manual) 4-7092 Cutter Blade (Air Lift Compatible) 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 4-6784 Rubber Drive Tire 1-0927 Parts Manual for 21” Steel Deck Commercial Model
Walk Behind Mower Series 17
21
06137
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 two (2) years from purchase date for the original 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 two (2) years 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
22
PRIMARY MAINTENANCE
23
PRIMARY MAINTENANCE
24
PRIMARY MAINTENANCE
25
PRIMARY MAINTENANCE
26
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____________________________________________________
It is very important that you register your purchase with Snapper to ensure warranty coverage. Please mail your product registration card to:
Snapper at P.O. Box 777, McDonough, Georgia 30253.
Or you may register on line at www.snapper.com.
You can contact us at our web site or if you would like to speak with a Customer Service Representative. Call us at the Snapper Customer Relations Center. For faster service please have your Serial Number and Model Number available.
Call the Snapper Cu stomer Relations Center at 1-800-935-2967.
Eastern Standard Time Monday through Friday from 8am to 6pm. Saturday from 9am to 1pm.
27
Safety Instructions & Operator’s Manual for
ENGINE EXHAUST, SOME OF ITS CONSTITUENTS, AND CERTAIN VEHICLE COMPONENTS CONTAIN OR
F CALIFORNIA TO CAUSE CANCER OR OTHER
BATTERY POSTS, TERMINALS AND RELATED ACCESSORIES CONTAIN LEAD AND LEAD COMPOUNDS,
WN TO THE STATE OF CALIFORNIA TO CAUSE CANCER AND BIRTH DEFECTS OR OTHER
21” STEEL DECK WALK MOWERS COMMERCIAL MODEL SERIES 17
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).
CHEMICALS KNO REPRODUCTIVE HARM. WASH HANDS AFTER HANDLING.
EMIT CHEMICALS KNOWN TO THE STATE O REPRODUCTIVE HARM.
COPYRIGHT © 2002 SNAPPER INC. ALL RIGHTS RESERVED
WARNING
WARNING
MANUAL No. 7-4932 (I.R. 6/07/02)
28
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