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Section 3 - MAINTENANCE 

 
3.1 INTRODUCTION 

To retain the quality of the SCRAMBLER, 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 the model and serial number.  
 

3.2  SERVICE - AFTER FIRST 5 HOURS 
 

WARNING 

DO NOT attempt any adjustments, maintenance or 
service with the engine or blade running. STOP 
blade. STOP engine. Set brake. Remove key. 
Remove spark plug wire from spark plug and secure 
wire away from spark plug. Engine and components 
can be extremely hot. Avoid burns by allowing 
engine and components sufficient time to cool. 

 

3.2.1.  CHANGE ENGINE OIL 
1. 

Place bricks or wooden blocks under the front 

wheels to lower rear of engine. 

2. 

Place a 4 quart minimum capacity container 

under the end of the oil drain. 

3.

  Loosen or remove oil fill cap on engine. 

4.

  Install the drain hose (Supplied in hardware bag) 

onto drain plug nipple and place hose into drain 
container. 

5.

  Rotate drain plug counter-clockwise and pull out 

to open and allow oil to drain out. See Figure 3.1. 

 

 

 

FIGURE 3.1 

 

6.

 After all the oil has drained, close the drain by 

pushing in and rotating clockwise to close. Wipe up 
any oil that may have spilled. Dispose of drained oil 
properly. See Figure 3.1. 

7.

  Change oil filter at every oil change.  Refer to your 

engine owner’s manual for service instructions. 

8.

  Fill engine crankcase with new oil.  Refer to your 

engine owner’s manual for oil specifications. 

3.2.2. SERVICE ENGINE AIR CLEANER 

The engine is equipped with a dual element air 
cleaner. Both the foam pre-cleaner and cartridge 
require service. Refer to Engine Owner's Manual 
for recommended service procedures

 
3.2.3.  CHECK MOWER BLADE 
1.

 Close vent on fuel cap and make sure cap is 

tight. 

2.

  Engage parking brake. 

3.

  Turn key to “STOP” position and remove key from 

ignition switch. 

 

WARNING 

Wear heavy leather gloves when handling or working 
around cutting blades. Blades are extremely sharp and 
can cause severe injury.  

 

4.

  Raise cutting deck to highest setting. 

5.

  With a floor jack, carefully raise front of machine to 

gain easier access to under deck.  Block machine 
securely. 

6.

 Check torque of blade mounting bolts or nuts. 

Torque to: 
42” Decks -- 30 to 40 ft. lbs.  
48” Decks – 80 to 90 ft. lbs. 
See Figure 3.2. 

7.

 Check blade for sharpness, wear and damage. 

Refer to Section “BLADE WEAR LIMITS”. 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

FIGURE 3.2 

 

8.

  Check blade for straightness. 

 
 

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.  

 
 
 

 
 
 

 

INSTALL HOSE 
ONTO OIL DRAIN 
NIPPLE 

OIL DRAIN 

ROTATE 1/4 TURN 
COUNTERCLOCKWISE 
AND PULL OUT TO 
DRAIN ENGINE OIL. 

BLADE MOUNTING TORQUE: 

42” -- 30 TO 40 FT. LBS. 
48” -- 80 TO 90 FT. LBS. 

TWIN & TRIPLE BLADE DECK 

Summary of Contents for SCRAMBLER YZ18426BVE

Page 1: ...r buying a SNAPPER Product Before operating your SCRAMBLER read this manual carefully and pay particular attention to the IMPORTANT SAFETY INSTRUCTIONS on Pages 2 4 Remember that all power equipment c...

Page 2: ...XTREME CAUTION on slopes above 10 degrees 18 grade Turn blades OFF when traveling uphill Use a slow speed and avoid sudden or sharp turns 3 DO NOT operate machine back and forth across face of slopes...

Page 3: ...use a nozzle lock open device 10 If fuel is spilled on clothing change clothing immediately 11 Never overfill a fuel tank Replace fuel cap and tighten securely OPERATION 1 Mount and dismount machine...

Page 4: ...l bolts nuts and screws properly tight Check that all cotter pins are in proper position 6 Always provide adequate ventilation when running engine Exhaust gases contain carbon monoxide an odorless and...

Page 5: ...ot Shaft 14 Parking Brake Pivot Bushings 14 Service Annually 15 Engine 15 Air Filter 15 Oil Filter 15 Engine Oil 15 Transaxle 15 Fuel Filter 15 Storage Out of Season 15 SECTION 4 ADJUSTMENTS AND REPAI...

Page 6: ...sential parts of the SNAPPER SCRAMBLER It is recommended that all operators of this equipment become thoroughly familiar with the controls components and operation of this machine before operating Spe...

Page 7: ...of any accumulation of dirt grass oil etc Keep engine air intake screen and cooling fins clear at all times 2 1 6 Add fuel to tank of the SCRAMBLER outside where fumes can safely dissipate Refer to en...

Page 8: ...the Parking Brake is engaged and the Blade Switch is in the Off position The operator should be in the seat Start engine as follows 1 Move joystick lever to N Neutral position See Figure 2 5 2 Make ce...

Page 9: ...WARNING DO NOT leave the machine with the engine running STOP engine STOP blades Engage parking brake Remove key DO NOT park machine on slopes 2 3 2 WHEEL DRIVE 1 Stop motion of riding mower by moving...

Page 10: ...any safety interlock or safety device is not in place and functioning properly DO NOT attempt to defeat modify or remove any safety device ENGINE MUST NOT START IF 1 Park Brake not in engaged positio...

Page 11: ...1 7 Change oil filter at every oil change Refer to your engine owner s manual for service instructions 8 Fill engine crankcase with new oil Refer to your engine owner s manual for oil specifications 3...

Page 12: ...ine fins These should be kept clean and free of debris as needed or cleaned 2 Engine Oil Change engine oil See Section on CHANGE ENGINE OIL Refer to engine owner s manual for oil specifications 3 Oil...

Page 13: ...o lock 3 3 2 MOWER COMPONENTS 1 Mower Drive Belt Check belt for proper tension No adjustment required Replace belt as needed 2 Mower Blade Check blade for sharpness wear damage and torque See the sect...

Page 14: ...shots of general purpose grease from grease gun See Figure 3 7 FIGURE 3 7 2 Front Caster Wheel Pivot Shaft The footrest floor pan assembly will have to be removed to lubricate the pivot shaft The acc...

Page 15: ...out of fuel Turn key to OFF position Engine MUST be stopped and MUST be cold before removing filter Perform filter change only when fuel line is empty 1 Remove hose clamps from fuel filter 2 Remove fu...

Page 16: ...equire any adjustment If the belt does not drive blade properly replace belt as needed See Section Belt Replacement Belt routing shown on this page See Figure 4 1 4 2 2 MOWER DRIVE BELT REPLACEMENT In...

Page 17: ...blade s are disengaged The electric clutch is non adjustable The blade s should stop rotation in 5 seconds or less If the electric clutch fails to stop the blade s rotation in 5 seconds contact an aut...

Page 18: ...If tires are properly inflated and mowing is still uneven check side to side deck levelness first then proceed to front to rear adjustment Adjust front to rear deck levelness as follows 1 Place SCRAMB...

Page 19: ...center of deck at the rear d Remove rear hanger chains and allow center rear of deck to rest on angle iron e Measure the distance from blade tips to floor If the measurement is within 1 8 from side t...

Page 20: ...umber of rotations on the eye bolt to raise or lower the rear of the deck See Figure 4 8 c Reinstall rear hanger chains and measure blade tips again d Repeat steps a through c until proper levelness i...

Page 21: ...access to under deck Block machine securely 6 Remove blade s See Figure 4 12 7 Inspect condition of blade See Figure 4 11 8 If blade is in good condition sharpen at 22 to 28 degrees DO NOT sharpen be...

Page 22: ...ctrolyte acid is a highly corrosive liquid Wear eye protection Wash affected areas immediately after having eye or skin contact with electrolyte acid Battery acid is corrosive Rinse empty acid contain...

Page 23: ...ly a small amount of grease over terminals to prevent corrosion WARNING Shield the positive terminal with terminal cover located on battery harness This prevents metal from touching the positive termi...

Page 24: ...1 8 increment then retighten lower nut to secure cable Check tracking of mower Repeat this adjustment if necessary See Figure 4 1 2 If mower tracks to the left loosen bottom nut first on the left cab...

Page 25: ...h new 20 AMP fuse 6 Faulty relay switch 6 Contact authorized SNAPPER dealer 7 Faulty parking brake or blade switch 7 Contact authorized SNAPPER dealer Engine Stalls After 1 Operator not in seat 1 Sit...

Page 26: ...ce blade s 8 Blade belt slipping 8 Replace blade belt 9 Check electric clutch 9 Adjust to proper specifications 33 Deck Only 10 Check clutch belt 10 Replace clutch belt Poor Grass Discharge 1 Engine s...

Page 27: ...l Filter Replace Engine Manual X Engine Cooling System Clean Shroud Fins Engine Manual Page 12 X Battery Check Electrolyte Page 21 X X Charge Battery Page 21 X Testing Battery Page 22 X Tires Check Pr...

Page 28: ...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 29: ...29 PRIMARY MAINTENANCE...

Page 30: ...30 PRIMARY MAINTENANCE...

Page 31: ...31 PRIMARY MAINTENANCE...

Page 32: ...32 PRIMARY MAINTENANCE...

Page 33: ...____________________________ Retailer s Phone Number____________________________________________________ It is very important that you register your purchase with Snapper to ensure warranty coverage P...

Page 34: ...____________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________...

Page 35: ...____________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________...

Page 36: ...ons 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 2004 SNAPPER A DIVISION OF...

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