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14 

Section 4 - REPAIR & ADJUSTMENTS 

 

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. 

 

 

 

FIGURE 4.9 

 
3.
  Slide driven disc assembly over to 1/8” from outside 
edge of drive disc. Maintaining the 1/8” measurement, 
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 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” measurement described previously.  
Reinstall driven disc spring to driven disc assembly. 

 
 
 
 
 
 
 
 
 
 
 
 

 

 

 

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. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

FIGURE 4.11 

 
 
 
 
 
 
 

 

1/8” MEASUREMENT TO 
OUTSIDE EDGE OF DRIVE 
DISC 

DRIVE 
DISC 

SLIDE DRIVEN 
DISC ASSEMBLY 
TOWARD OUTSIDE 
EDGE 

TRANSFER 
ROD 

CONNECTOR 

CONNECTOR  
HEX NUT 

OUTSIDE 
EDGE 

CONNECTOR 
CLIP 

SPEED CONTROL 
ROD 

TRANSFER 
ROD 

DRIVEN DISC 
ASSEMBLY 

DRIVE 
DISC 

DRIVEN DISC 
SPRING 

TRANSFER 
ROD 

CONNECTOR 

CONNECTOR 
HEX NUT 

Summary of Contents for FRP216016

Page 1: ...elf Propelled Model 16 Series Designation 21 21 Cutting Width Thank you for buying a SNAPPER Product Before operating your Walk Behind read this manual carefully and pay particular attention to the IM...

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 crass 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: ...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 Replac...

Page 5: ...TIONS 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 o...

Page 6: ...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 fin...

Page 7: ...RE 2 5 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 rel...

Page 8: ...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 t...

Page 9: ...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 w...

Page 10: ...place 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 operatin...

Page 11: ...h in either tip See Figure 4 1 4 1A 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 ins...

Page 12: ...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 FIGURE 4 4 2 To adjust unhook upper spring from cable eye a...

Page 13: ...using 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...

Page 14: ...etighten 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 measurement described previously Rei...

Page 15: ...ion FIGURE 4 12 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 s...

Page 16: ...engages the transmission that powers the rear wheels Should these belts become worn they could cause slippage which would impair mower performance The condition of the engine belt and poly v belt sho...

Page 17: ...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...

Page 18: ...ped 3 Replace air lifts Tighten to proper torque 4 Lumpy or frayed belt 4 Replace belt 5 Bent Idler pulley 5 Replace pulley Mower Will Not Move 1 Damaged transmission 1 Contact authorized SNAPPER deal...

Page 19: ...es 10 X Drive Disc Check for Wear Damage Replacement Page 12 15 X Change oil every 25 hours when operating under heavy load or high temperatures Clean more often under dusty conditions or when air deb...

Page 20: ...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 21: ...21 PRIMARY MAINTENANCE...

Page 22: ...22 PRIMARY MAINTENANCE...

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

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

Page 25: ...__ ___________________________________________________________________ ___________________________________________________________________ _____________________________________________________________...

Page 26: ...__ ___________________________________________________________________ ___________________________________________________________________ _____________________________________________________________...

Page 27: ...__ ___________________________________________________________________ ___________________________________________________________________ _____________________________________________________________...

Page 28: ...tand 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 authori...

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