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16

Maintenance

Driven and Drive Disc Service

If the mower does not propel itself properly, check for the
following problems:

1. Grease on the drive disc 

(A, Figure 23)

causing

slippage.

2. Broken or disconnected drive spring 

(B)

.

3. Driven disc 

(C)

is out of adjustment.

4. Driven disc rubber is worn - does not contact drive disc

properly.

5. Worn Poly-V belt 

(D)

or engine drive belt 

(E)

.

If any of the above (1 thru 5) are causing problems, service
as follows:

Cleaning Drive Disc & Driven Disc

If oil or grease on the drive disc or driven disc is causing
slippage, clean the 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.

Drive Spring Repair/Replacement

If the drive spring 

(A, Figure 24)

is loose, reconnect. If the

spring is broken, replace with a new spring.

Note: Use a pair of needle nose pliers to install the drive
spring.

IMPORTANT: If the drive system continues slipping, refer to
the Troubleshooting section.

Driven Disc Adjustment

If the drive disc and driven disc are clean and the mower
drive is still slipping, adjust the driven disc as follows:

1. Move the ground speed control 

(A, Figure 25)

into the

‘fast’ position.

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.

!

!

B

C

A

D

Figure 23: Wheel drive components

E

A

Figure 24: Replacing the drive spring

C

Figure 25: The ground speed control

Maintenance (Continued)

Summary of Contents for 7800249

Page 1: ...t notice Actual sustained engine power will likely be lower due to operating limitations and environmental factors Please refer to Engine Power Rating Information for further details Manual No 7101607...

Page 2: ..._______________ Retailer_________________________________________________________________________ Retailer s Phone Number___________________________________________________________ Equipment Model Num...

Page 3: ...12 Check Mower Blade 13 Check Engine Drive Belt 13 Check Transmission Belt 13 Service Periodic 13 Engine 13 Air Filter 13 Engine Oil 13 Storage Procedure 13 Mower Blade Replacement 14 Blade Sharpenin...

Page 4: ...ty 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 sta...

Page 5: ...TOP before removing grass bag and or clearing grass Operation Continued From Previous Column 13 DO NOT operate mower without the entire grass catch er rear guard or other safety devices in place and w...

Page 6: ...without entire grass catcher or guard in place D Keep children and others out of mowing area C A D B dB Mfg No XXXXXXX WALK BEHIND LAWN MOWER S N XXXXXXXXXX SIMPLICITY MFG SNAPPER MCDONOUGH GA30253 US...

Page 7: ...to the OPC bail When bail is rotated rearward the engine may be started and will run as indicated by the engine with rotating arrow With the engine running the blade is rotating as indicated by the cu...

Page 8: ...Contact your Snapper dealer if you have questions Features and Controls A Oil Fill Cap and Dipstick B Fuel Filler Cap C Recycling Cover D Rear Height Adjustment Latch 2 E Front Height Adjustment Latch...

Page 9: ...ow for fuel expansion Make sure the cap B Figure 2 is tightened after fueling Refer to the Engine Owners Manual for fuel specifications 6 Clean the exterior surfaces of the cutting deck and engine of...

Page 10: ...ve control 2 Stop the engine and blade by releasing the blade control Handle Height Adjustment The height of the mower handle can be adjusted as follows 1 Loosen the lower nuts A Figure 6 on each lowe...

Page 11: ...wheel latch one notch lower than the front wheel latches to improve recycling performance Note The recycling cover should remain on the machine at all times unless alternate discharge operations are d...

Page 12: ...re 11 to the deck in place of the recycling cover making sure that The front hole B on the outside front of the adapter fits over the stud where the front of the recycling cover was originally secured...

Page 13: ...ustments 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 ti...

Page 14: ...ission fill plug A Figure 15 Roll the machine forward or backward while looking down into the plug hole 2 If liquid grease is not visible on the input gear the small gear below the plug hole add an am...

Page 15: ...for service instructions 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 the f...

Page 16: ...ug down Oil from the 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 th...

Page 17: ...to extend or shorten the spring length 3 Rehook the upper spring to the cable eye and check clearance Repeat the procedure if required Note The vinyl spring cover B should be kept over the spring at...

Page 18: ...ean water 4 Dry components with a clean cloth Drive Spring Repair Replacement If the drive spring A Figure 24 is loose reconnect If the spring is broken replace with a new spring Note Use a pair of ne...

Page 19: ...to the slow position then back to the fast position Recheck the 1 8 measurement described previously Readjust as needed Tighten the nut when finished 7 Reinstall the driven disc spring to the driven d...

Page 20: ...n disc bearing requires replacement replace the bearing as follows 1 Remove the driven disc assembly Refer to the Section entitled Driven Disc Replacement 2 Remove both snap rings A Figure 30 that sec...

Page 21: ...ve disc C 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 performance...

Page 22: ...lley on the bottom of the drive disc 10 Reinstall the drive disc and retaining hardware IMPORTANT 1 The square shoulder of the drive disc bolt must fit into the square hole of the bushing 2 The square...

Page 23: ...12 X Drive Disc Check for Wear Damage and Replacement Page 15 18 X Change oil every 25 hours when operating under heavy load or high temperatures Clean more often under dusty conditions or when air de...

Page 24: ...proper torque 4 Lumpy or frayed belt 4 Replace belt Mower Will Not Move Loss Of Traction 1 Build up of debris on or around wheel drive components 1 Clean debris 2 Driven disc slipping 2 Clean or repla...

Page 25: ...he original 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 m...

Page 26: ...www snapper com 24 Notes...

Page 27: ...25...

Page 28: ...www snapper com 26 Notes...

Page 29: ...27 Notes...

Page 30: ...www snapper com 28 Notes...

Page 31: ...29 Notes...

Page 32: ...rating the equipment the gas engine will not develop the rated gross power when used in a given piece of power equipment actual on site or net power This difference is due to a variety of factors incl...

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