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20 

TROUBLESHOOTING 

 

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 

Instructions. 

 

3. Spark plug wire disconnected. 

3. Place spark plug wire onto spark plug. 

Engine Stalls or Stops 

After Running 

1. Blade control is released or is not being held securely 

against handle. 

1. Blade control should be held securely against 

handle at all times during operation of mower. 

 

2. Fuel tank empty. 

3. Fill with fuel to proper level. 

 

3. Engine air pre-cleaner and or air cleaner dirty. 

4. Clean free of all debris. 

 

4. Spark plug defective or gap set improperly. 

5. Service spark plug. 

 

5. 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. 

Mower Will Not Move  1. Damaged transmission 

1. Contact authorized SNAPPER dealer. 

Loss Of Traction 

2. Engine drive belt broken requires replacement 

2. Replace engine drive belt. 

 

3. Engine drive belt has jumped off of the pulley 

3. Reinstall belt onto pulley. Check for damage. 

(Self-Propelled Models)  4. Poly V belt is broken. 

4. Replace Poly-V belt. 

 

5. Poly V belt has jumped off of the pulley 

5. Reinstall belt onto pulley. Check for damage. 

 

6. Driven disc slipping 

6. Clean or replace driven disc. 

 

7. Broken or loose differential link bolt 

7. Tighten or replace link bolt. 

Cutting Grass 

1. Cutting height too low or high. 

1. Adjust cutting height. 

Improperly 

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. 

Poor Grass Discharge  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. 

6. Install proper SNAPPER blade. 

 

7. Blade installed improperly on deck. 

7. Install blade properly. 

Oil Leaking 

1. Leaking engine case. 

1. Contact authorized SNAPPER dealer. 
2. Check and tighten drain plug. 
3. Make sure dip stick or oil filler cap is securely 

in place. 

 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for WMRP216517B

Page 1: ...wer R Recycling Model P Self Propelled Model 17 Series Designation 21 21 Cutting Width B Briggs Stratton Engine Thank you for buying a SNAPPER Product Before operating your Walk Behind read this manua...

Page 2: ...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...

Page 3: ...rate 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 spa...

Page 4: ...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 14 Wheel Drive Control Ad...

Page 5: ...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...

Page 6: ...d 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 intak...

Page 7: ...r handle can be adjusted as follows 1 Loosen the lower nuts on each lower handle as shown in Figure 2 5 2 Move upper mower handle up or down until the desired position is achieved 3 Tighten the lower...

Page 8: ...eel latches to improve recycling performance INSTALLATION of GRASS BAG ADAPTER Optional Accessory on Some Models STEP 1 Install the grass bag adapter and secure to the side and top of the deck with th...

Page 9: ...ire to the grass bag Tie the bag slider to the top wire Fold bag opening into a Z and pull bag into slider See Figure 2 9 FIGURE 2 9 B Position grass bag between handles See Figure 2 10 Install grass...

Page 10: ...n and both bolts protruding through holes in the side of the deflector Secure nuts to the side of deflector Tighten nuts securely See Figure 2 13 FIGURE 2 13 2 9 INSTALLATION of RECYCLING COVER Option...

Page 11: ...s 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 han...

Page 12: ...evered 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 exp...

Page 13: ...either tip See Figure 4 1 4 2 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 inspecti...

Page 14: ...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 FIGURE 4 5 2 To adjust unhook upper spring from cable e...

Page 15: ...s 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 compone...

Page 16: ...ewed from operators position Then retighten the connector hex nut securely See Figure 4 10 Move ground speed control to the first speed position then back to the sixth speed position Recheck the 1 8 m...

Page 17: ...MPORTANT The bearing on these M series machines is staked into the thrust plate The bearing will have to be driven out with a mallet and a large punch A new bearing with four retaining screws will hav...

Page 18: ...earing 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 FIGURE 4 14 4 4 BELT SERVICE On self propelled mowe...

Page 19: ...ck 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 i...

Page 20: ...f Traction 2 Engine drive belt broken requires replacement 2 Replace engine drive belt 3 Engine drive belt has jumped off of the pulley 3 Reinstall belt onto pulley Check for damage Self Propelled Mod...

Page 21: ...wer Deck Clean Debris Accumulation Page 10 X Transmission Grease Check Grease Level Pages 9 X X Periodic Grease Check Pages 10 X Drive Disc Check for Wear Damage Replacement Page 12 15 X Change oil ev...

Page 22: ...ginal purchase date SNAPPER will not be responsible for any installation cost incurred The battery warranty only covers original equipment batteries and does not cover damage to the battery or machine...

Page 23: ...23 PRIMARY MAINTENANCE...

Page 24: ...24 PRIMARY MAINTENANCE...

Page 25: ...25 PRIMARY MAINTENANCE...

Page 26: ...26 PRIMARY MAINTENANCE...

Page 27: ...one Number____________________________________________________ It is very important that you register your purchase with Snapper to ensure warranty coverage Please mail your product registration card...

Page 28: ...s 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 COPYRIGHT 200...

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