background image

Section 6

22

Tracking Adjustment

Stop the engine and remove the key from the
ignition before making any adjustments.  Wait for
all moving parts to come to a complete stop
before beginning work.

The engine and drive unit can get hot during
operation causing burn injuries.  Allow engine
and drive components to cool before making any
adjustments.

-NOTE-

Before  proceeding  with  this  adjustment,  be  sure

that the caster wheels turn freely and that the tire

pressure in the drive wheels is correct.  If the tire

pressure is not correct, the machine will pull to

the side with the lower pressure.

1. If at full speed the mower pulls right, it is an

indication that the left wheel is turning faster than the

right wheel.  To adjust this condition, proceed as

follows:

A. Stop the machine and place the steering control

levers in the neutral position.  Loosen the lock

nuts securing the ball joints at each end of the

LH steering control rod.  Rotate the control rod

to shorten the rod and tighten the lock nuts.

This will cause the control rod to stroke the LH

pump less, slowing down the LH wheel.  (See

Figure 6-4).

-NOTE-

If after making the adjustment as outlined in step

1A,  the  machine  creeps  forward  or  backward,  the

neutral adjustment must be made as described on

page  19.

2. If at full speed the mower pulls left, it is an indication

that the right wheel is turning faster than the left

wheel.  To adjust this condition, proceed as follows:

CAUTION:

CAUTION:

A. Stop the machine and place the steering control

levers in the neutral position.  Loosen the lock

nuts securing the ball joints at each end of the

RH steering control rod.  Rotate the control rod

to shorten the rod and tighten the lock nuts.

This will cause the control rod to stroke the RH

pump less, slowing down the RH wheel.  (See

Figure 6-3).

6.5 BELT ALIGNMENT

Belt alignment is important for proper performance of

your Scag mower.  If you experience frequent belt wear

or breakage, see your authorized Scag service center for

belt adjustment.

All drive belts and cutter deck belts are spring loaded and

self-tensioning.  The belts should be checked periodically

for proper alignment and wear.

WARNING:

Before removing any guards, shut the
engine off and remove the ignition key.

6.4 BELT ADJUSTMENT

-NOTE-

If after making the adjustment as outlined in step

2A,  the  machine  creeps  forward  or  backward,  the

neutral adjustment must be made as described on

page  21.

6.3 THROTTLE CONTROL AND CHOKE

 ADJUSTMENTS

These adjustments must be performed by your Scag

dealer to ensure proper and efficient running of the

engine.  Should either need adjustment, contact your

authorized Scag service center.

Summary of Contents for SMTC-40

Page 1: ...OWER READING THIS MANUAL CAN PROVIDE YOU WITH ASSISTANCE IN MAINTENANCE AND AD JUSTMENT PROCEDURES TO KEEP YOUR MOWER PERFORMING TO MAXIMUM EFFI CIENCY THE SPECIFIC MODELS THATTHIS BOOK COVERS ARE CON...

Page 2: ...e and proper training of the personnel involved in the operation transport maintenance and storage of the equipment This manual covers the operating instructions and illustrated parts list for STC40 1...

Page 3: ...and Instructional Decals 7 Section 3 Specifications 8 9 Section 4 Operating Instructions 4 1 Controls and Instrument Identification 10 4 2 Safety Interlock System 11 4 3 Initial Run In Procedures 11...

Page 4: ...e Oil 29 7 5 Engine Fuel System 29 7 6 Engine Air Cleaner 30 7 7 Battery 30 7 8 Drive Belts 32 7 9 Cutter Blades 32 7 10 Tires 33 7 11 Body Deck and Upholstery 34 Section 8 Replacement Parts 40 Cutter...

Page 5: ...o circumstances should your mower be operated without these devices in place All information is based upon product information available at the time of approval for printing Scag Power Equipment reser...

Page 6: ...rt Spring Tension on Idler Oil Off Stop SYMBOL DESCRIPTION SYMBOL DESCRIPTION ISO Symbols Spinning Blade 48071S Parking Brake WARNING FALLING HAZARD USE ONLY SCAG APPROVED RIDING ATTACHMENTS SEE OPERA...

Page 7: ...tting Element Basic symbol Cutting Element Disengage Continuously Variable Linear Read Operator s Manual Keep Bystanders Away Pinch Point 481039S SYMBOL DESCRIPTION SYMBOL DESCRIPTION Hourmeter Elapse...

Page 8: ...y To avoid injury and possible death carefully read the message Be sure to fully understand the causes of possible injury or death Signal Word It is a distinctive word found on the mower safety decals...

Page 9: ...hine wearing shorts always wear adequate protective clothing including long pants Wearing safety glasses safety shoes and a helmet is advisable and is required by some local ordinances and insurance r...

Page 10: ...oving the key 13 Disengage power to the attachments when transporting or when not in use 14 The machine and attachments should be stopped and inspected for damage after striking a foreign object and d...

Page 11: ...7 Section 2 2 6 SAFETY AND INSTRUCTIONAL DECALS WARNING INSTALL BELT COVER BEFORE OPERATING MACHINE READ OPERATOR S MANUAL 481039 481568 FORWARD REVERSE F R...

Page 12: ...Volt 13Amp Kawasaki 12 Volt 15 Amp Kohler System Polarity Negative Ground Starter 12 Volt Electric Ring Gear Type Key and Solenoid Operated Interlock Switches Seat Neutral Control Mower Engagement BBC...

Page 13: ...Top Dimension Spindle Shaft Cast Housing Taper Roller Bearing Low Maintenance with Top Access Grease FittingandGreaseOverfillReliefPoppet SpindlePulleys Cast iron with Easily Removed Taper Hubs Cutter...

Page 14: ...eck drive Pushing down on the switch will disengage the deck drive 3 Engine Choke Control Figure 4 1 Used to start a cold engine 4 Engine Throttle Control Figure 4 1 Used to control the engine speed P...

Page 15: ...e 4 2 Located on the hydraulic pumps used to free wheel the mower Rotating the levers clockwise until they stop allows the unit to move under hydraulic power The levers must be in this position during...

Page 16: ...release the key as soon as the engine starts Do not hold the key in the START position for more than 15 seconds at a time Allow at least 60 seconds between each cranking attempt to prevent overheating...

Page 17: ...ge could occur To travel in reverse pull levers inward out of the neutral lock position and pull both handles back Keep the travel speed low while traveling in reverse NOTE The mower may not travel st...

Page 18: ...5 Check the tire pressure Adjust pressure if necessary NOTE A squealing noise may be heard when engaging or disengaging the deck drive It is caused by the electric clutch plates meshing as the mower c...

Page 19: ...power 2 The discharge chute must not be removed and must be kept in the lowest position to deflect grass clippings and thrown objects downward Direct the side discharge away from sidewalks or streets...

Page 20: ...right foot until it locks in place Figure 4 5 3 Insert the lanyard pin into the cutting height index at the desired cutting height Push forward on the deck lift foot lever hold in place and lift up on...

Page 21: ...es Uncut Grass in Cutting Path Incorrect blade sharpening Sharpen blades Low engine RPM Run engine at full RPM Beltslipping Adjustbelttension Deck plugged grass accumulation Clean underside of deck Gr...

Page 22: ...ized SCAG dealer Dullblade Sharpen blade TROUBLESHOOTING CONT D Sloping Ridge Across Tire pressures not equal Check and adjust tire pressure Width of Cutting Path Wheels uneven Check and adjust tire p...

Page 23: ...speed to adjust for conditions Wet grass Cut grass after it has dried out Step Cut Ridge Blades not mounted evenly Adjust pitch and level in Center of Cutting path Bent blade Replace blade Internalspi...

Page 24: ...the proper distance is achieved See Figure 6 1 Tighten the jam nuts 4 With the brake in the engaged position check the distance between the lower nut on the brake actuator rod and the brake actuator l...

Page 25: ...wheel by loosening the jam nuts on the steering control rod and turning the rod until the drive wheel turns in the forward direction Turn the rod back until the drive wheel stops moving Turn the rod a...

Page 26: ...ustment must be made as described on page 19 2 If at full speed the mower pulls left it is an indication that the right wheel is turning faster than the left wheel To adjust this condition proceed as...

Page 27: ...ch The pitch of the cutter deck should be 1 4 down toward the front of the cutter deck for proper cutting performance To check for proper deck pitch be sure that the mower is on a flat level surface a...

Page 28: ...7 Tighten the jam nuts on the control rod Figure 6 7 Cutter Deck Stop 3 Check the cutter deck cutting height by placing the lanyard pin in the 3 position on the cutting height index Release the deck f...

Page 29: ...paragraph 7 4 First 5 X Check hydraulic hoses for leaks Use extreme caution when checking the hydraulic hoses See paragraph 2 5 X Check engine oil level See paragraph 7 4 X Clean mower See paragraph...

Page 30: ...he top of the caster extension Remove the grease zerk and reinstall the plug Reinstall the grease cap Special tool part number 47007 is recommended for use in the installation of the grease cap Compat...

Page 31: ...ing Points 390S0145A GREASE FITTING LUBRICATION LUBRICANT INTERVAL LITHIUM MP WHITE GREASE 2125 40 HOURS WEEKLY CHASSIS GREASE 100 HOURS BI MONTHLY CHASSIS GREASE 200 HOURS MONTHLY 4 1 3 5 7 2 CHASSIS...

Page 32: ...black color and or a rancid odor usually indicates possible overheating of the oil and a milky color usually indicates water in the hydraulic oil IMPORTANT The hydraulic oil should be changed if you...

Page 33: ...after every 100 hours of operation or bi weekly whichever occurs first Refer to the Engine Operator s Manual furnished with this mower for instructions C Changing Engine Oil Filter After the first 5 h...

Page 34: ...replace the element if required NOTE In extremely dusty conditions it may be necessary to check the element once or twice daily to prevent engine damage 1 For the KH model remove the wing nut securin...

Page 35: ...TANT Do not overfill the battery Electrolyte will overflow through the vent tube onto parts of the machine resulting in severe corrosion 2 Clean the cable ends and battery posts with steel wool Use a...

Page 36: ...wear or breakage see your authorized Scag Dealer for belt adjustment 7 9 CUTTER BLADES A Blade Inspection 1 Remove the ignition key before servicing the blades 2 Raise the mower deck to the highest po...

Page 37: ...remove the blade bolt from the cutter spindle 4 To install the new cutter blade put the flat washer onto the blade bolt and slide the bolt into the hole in the cutter blade Figure 7 10 Blade Replacem...

Page 38: ...ach use wash the mower and cutter deck Use cold water and automotive cleaners Do not use pressure cleaners 2 Do not spray electrical components 3 Use a mild soap solution or a vinyl rubber cleaner to...

Page 39: ...35 Section 8...

Page 40: ...22 40 37 44 61 63 69 56 65 64 56 15 47 51 23 23 10 5 7 6 8 25 50 1 13 11 13 46 18 12 3 2 3 4 4 29 14 28 52 20 24 53 52 21 26 27 57 30 49 23 34 23 33 58 31 55 55 53 52 30 32 33 23 23 49 33 23 55 55 53...

Page 41: ...04001 62 Bolt Hex Head 3 8 16 x 3 1 4 32 461175 Idler Arm 33 04001 136 Bolt Hex Head 3 8 16 x 1 1 2 Grade 8 34 461314 Idler Arm 35 43298 Shaft Spindle 36 481024 Seal Upper 37 481022 Bearing Assembly 3...

Page 42: ...13 18 12 10 5 7 6 8 25 1 50 24 14 21 33 14 29 21 24 20 32 29 2 3 13 3 29 30 21 31 21 14 3 31 3 29 21 28 30 20 3 28 34 35 36 37 38 39 40 41 42 37 44 43 45 46 47 48 48 49 49 49 49 51 52 52A 55 54 53 53...

Page 43: ...earing Assembly x x 38 48114 04 Grease Fitting x x 39 48677 Valve Grease Relief x x 40 43294 Housing Spindle x x 48A 52A CUTTER DECKS Ref Part No No Description 48 52 Ref Part No No Description 48 52...

Page 44: ...8 11 10 12 14 7 15 18 16 17 21 20 22 19 19 22 23 23 24 24 24 24 24 24 25 25 25 25 26 27 27 27 27 27 28 28 29 29 30 31 32 33 34 35 34 36 17 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 53 54 55 5...

Page 45: ...8114 04 Grease Fitting 1 4 28 Self Tap x x x 30 04021 09 Nut Elastic Stop 3 8 16 x x x 31 04041 07 Flatwasher 3 8 391 x 938 x 105 x x x 32 04004 33 Stud 5 8 11 x 22 x x x 33 04040 09 Flatwasher 5 8 65...

Page 46: ...6 3 23 31 32 33 34 33 35 36 39 38 37 40 41 43 45 30 42 44 44 42 21 2 5 15 19 4 A A 22 63 13 9 17 47 15 29 12 12 55 15 53 12 15 15 12 51 12 15 15 52 15 27 46 49 48 56 12 54 15 26 30 28 12 12 50 7 8 60...

Page 47: ...14 33 481657 Bearing Set 34 482028 01 Plug 1 4 28 35 481025 Seal 2 0 OD x 1 625 ID 36 04021 07 Nut Elastic Stop 1 2 13 37 45934 Yoke Front Caster Wheel 38 04001 134 Bolt Hex Head 1 2 13 x 7 1 2 39 434...

Page 48: ...44 Section 8 STC 2K DSC 6 4 2 15 3 18 5 16 12 11 10 9 14 13 1 17 8 7 1 1 1 1 2 5 7 9 10 10 11 12 15 19 20 21 22 23 24 25 26 DRIVE SYSTEM COMPONENTS...

Page 49: ...8 16 x 3 1 4 Grade 8 14 43286 Spacer Idler 15 48224 Bearing 16 423185 Belt Guard 17 04001 31 Bolt Hex Head 3 8 16 x 2 1 2 18 04003 11 Bolt Carr 3 8 16 x 1 1 4 19 482097 Pulley 4 45 Dia 1 Bore 20 4212...

Page 50: ...46 Section 8 ENGINE AND ATTACHING PARTS STC 2001 EAPKA 6 16 3 4 6 2 5 14 15 4 6 7 8 10 13 4 6 18 17 16 6 1 9 11 19 12 Kohler Only 20 21 22 13 18 23 23 24 24 25 19 18 26 27...

Page 51: ...x x x x 13 04003 04 Bolt Carr 5 16 18 x 1 x x x x x x 14 04003 12 Bolt Carr 5 16 18 x 3 4 x x x x x x 15 04003 31 Bolt Carr 3 8 16 x 3 4 x x x x x x 16 04019 03 Nut Serr Flange 5 16 18 x x x x x x 17...

Page 52: ...TO RH PUMP TO LH PUMP 1 2 3 4 4 5 5 6 7 8 9 9 10 10 11 11 12 12 13 13 14 14 15 16 5 5 17 18 19 20 20 21 22 23 24 24 25 26 26 27 28 29 29A 30 31 32 33 33A 34 34 35 36 37 38 39 40 41 42 43 44 45 35 46 4...

Page 53: ...r 5 16 18 x 3 4 25 423200 Bracket Fuel Tank Front 26 04019 03 Nut Serr Flange 5 16 18 27 461307 Control Plate Weldment LH w decal 28 04001 18 Bolt Hex Head 3 8 16 x 3 4 29 43561 Shaft Steering Control...

Page 54: ...Section 8 STC 2K BSC 17 18 A A 1 2 3 6 7 8 9 10 11 12 13 14 15 16 19 20 20 21 6 22 23 24 24 25 26 26 27 28 29 29 30 31 32 33 34 34 35 36 37 38 39 42 40 41 22 24 35 34 5 4 25 43 44 45 46 BRAKE COMPONEN...

Page 55: ...kage RH 22 48114 04 Grease Fitting 1 4 28 Self Tap 23 04020 14 Nut 3 8 24 UNF 24 04050 01 Retaining Ring 625 Ext 25 04021 10 Nut Elastic Stop 5 16 18 26 04041 07 Flatwasher 3 8 391 x 938 x 105 27 0400...

Page 56: ...6 6 6 6 6 7 7 8 8 9 10 9 10 11 11 11 11 11 11 11 11 12 12 28 13 14 14 15 15 16 16 17 18 18 19 19 20 20 21 14 22 23 24 25 4 26 27 27 15 29 29 29 29 30 31 32 54 32 32 33 32 34 35 36 36 37 37 38 39 40 41...

Page 57: ...1 2 29 48938 02 O Ring Bushing 5 8 Tube 30 482202 Elbow 3 4 16 O Ring 1 2 Hose 31 48136 05 Clamp 87 Max Dia Ref Part No No Description Ref Part No No Description FUEL AND HYDRAULIC SYSTEM 32 48058 Fu...

Page 58: ...54 Section 8 ELECTRICAL SYSTEM KAWASAKI KOHLER 24 1 2 STC 2001 ESKA 10 11 14 18 12 16 23 28 9 10 11 8 7 17 3 4 5 21 11 27 15 12 12 18 26 25 22 20 6 13 19 29 30 31 32 33 34 35 36...

Page 59: ...Nut Hex 1 4 20 22 48029 14 Cable Battery Black negative 23 48029 13 Cable Battery Red positive Kawasaki 48029 02 Cable Battery Red positive Kohler 24 482215 Wiring Harness Main 482322 Wiring Harness M...

Page 60: ...56 Section 8 HYDRAULIC PUMP ASSEMBLY 390S0167 11 4 9 11 2 12 10 6 8 13 7 18 5 14 15 16 17 19 20 21 22 1 29 23 24 30 25 26 28 27 3 Overhaul Seal Kit HYDRAULIC PUMP ASSEMBLY...

Page 61: ...3 HG 9006110 0120 Backup Ring 14 HG 70079 Cylinder Block Kit 15 HG 2003014 Block Spring 16 HG 2003017 Block Thrust Washer 17 HG 2003044 Roller Thrust Bearing 18 HG 2003087 Swash Plate 19 HG 2003005 Tr...

Page 62: ...5 3 2 5 2 1 5 1 482101 482100 FORWARD REVERSE F R Heavy Duty Commercial 481971 MANUFACTURED UNDER ONE OR MORE OF THE FOLLOWING PATENTS 4 487 006 4 991 382 5 832 708 4 885 903 4 998 948 5 865 018 4 920...

Page 63: ...Duty Commercial 8 48404 Decal Metalcraft Made in USA 9 481039 Decal Belt Cover 10 482214 Decal Instrument Panel 11 482213 Decal Fuel Valve Position 12 482101 Decal Cutting Height 13 482216 Decal Cont...

Page 64: ...ARTER ENGINE FUSES 20 AMP GRN WHT RED BLK ENGINE HARNESS RED YEL BLK BLK RED YEL STC 2K SKH YEL A B C D E F G H RED YEL YEL YEL WHT GRN WHT PINK RED MODULE PLUG RED RED WHT BLK RED RED BLK BLU WHT GRN...

Page 65: ...warranty work and the expense of returning it to the owner after repair will be paid for by the owner Scag s responsibility is limited to making the required repairs and no claim of breach of warrant...

Page 66: ...PART NO 03091 PRINTED 10 00 PRINTED IN USA 2000 SCAG POWER EQUIPMENT DIVISION OF METALCRAFT OF MAYVILLE INC...

Reviews: