SCAG STR - Manuals

II TABLE OF CONTENTS (CONT'D) SUBJECT PAGE Section 6 - Adjustments 6.1 Parking Brake Adjustment ................................................................................................... 23 6.2 Travel Adjustments .................................................................................

Section 1 1 GENERAL INFORMATION 1.1 INTRODUCTION Your mower was built to the highest standards in theindustry. However, the prolonged life and maximumefficiency of your mower depends on you following theoperating, maintenance and adjustment instructions in thismanual. If additional information or se...

2 SAFETY INFORMATION 2.1 INTRODUCTION Your mower is only as safe as the operator. Carelessness oroperator error may result in serious bodily injury or death.Hazard control and accident prevention are dependent uponthe awareness, concern, prudence, and proper training ofthe personnel involved in the ...

3 6. O p e r a t o r h e a r i n g p r o t e c t i o n i s r e c o m m e n d e d , particularly for continuous operation of the mower.Wear suitable hearing protection. Prolonged exposureto loud noise can cause hearing impairment or loss. 7. Keep the machine and attachments in good operating conditio...

4 7. Be alert for holes, rocks, and roots in the terrain and other hidden hazards. Keep away from any dropoff.Beware of overhead obstructions (low limbs, etc.),underground obstacles (sprinklers, pipes, tree roots,etc.). Cautiously enter a new area. Be alert for hiddenhazards. 8. Disengage power to m...

5 Section 2 2.6 SAFETY AND INSTRUCTIONAL DECALS DANGER SPINNING BLADE KEEP CLEAR CONTACT CAN INJURE 48071 ROTATING BLADES AND BELTS WARNING KEEP HANDS, FEET & CLOTHING CLEARKEEP ALL GUARDS IN PLACESHUT OFF ENGINE & DISENGAGE BLADECLUTCH BEFORE SERVICINGCLEAR AREA OF DEBRIS BEFORE MOWINGUSE C...

6 SPECIFICATIONS 3.1 ENGINE General Type ............................................................................. Heavy Duty Industrial/Commercial GasolineBrand ......................................................................................... KohlerModel ...................................

7 3.3 TRACTOR (CONT'D) Travel Speed: Forward ................................................................................ 0 - 7.5 MPH Reverse ................................................................................. 0 - 3.5 MPH 3.4 CUTTER DECK No. of Blades .................................

8 Section 4 OPERATING INSTRUCTIONS Do not attempt to operate this mower unless youhave read this manual. Learn the location andpurpose of all controls and instruments before youoperate this mower. 4.1 CONTROLS AND INSTRUMENT IDENTIFICATION Before operating the mower, familiarize yourself with allmow...

9 Section 4 5. Ammeter (Figure 4-1). Indicates the condition of the charging system. When the engine is running theneedle should be at the positive end of the meter. Ifthe needle is on the negative end of the meter, thisindicates a discharge condition and the machineshould be taken in for service. 6...

10 Section 4 4.2 SAFETY INTERLOCK SYSTEM The mower is equipped with a safety interlock systemthat prevents the engine from starting unless the deckdrive is disengaged and the speed control is in neutral.The interlock system shuts off the engine if the operatorleaves the seat with the speed control n...

11 Section 4 -IMPORTANT- Start practice with a slow engine speed and slowforward travel. Do not push the steering control levers forwardwhen traveling forward. They are only used tosteer the mower and to travel in reverse bypulling back on the levers. Learn to operate the mower with the left handon ...

12 Section 4 Reverse Travel Before backing up, observe the rear for personsand obstructions. Clear the area before backingup. Possible injury or property damage couldoccur. Disengage power to the mower before backing up.D o n o t m o w i n r e v e r s e u n l e s s a b s o l u t e l ynecessary and t...

13 Section 4 4.7 HILLSIDE OPERATION To minimize the possibility of overturning, theleast dangerous method of operating on hills andterraces is to travel vertically up and down theslope, not horizontally along the slope. Avoid anyunnecessary turns and travel at reduced speed. 1. The mower has been de...

14 Section 4 4. Fill the fuel tank with fresh, clean fuel at the end of every day of operation. 5. Check the tire pressure. Inflate tires if necessary. 4.10 HOPPER/SIDE DISCHARGE OPERATION A control lever located on the left side of the tractorselects either hopper discharge or side discharge to the...

15 Section 4 4.11 REMOVING CLOGGED MATERIAL ROTATING BLOWER BLADES NEVER PUT YOUR HANDS INTO THE BLOWERDISCHARGE CHUTE FOR ANY REASON! Shut offthe engine and remove the key and only then usea stick or similar object to remove material ifclogging has occurred. B. Raise the tailgate until the u-bolt o...

16 Section 4 4.12 MOVING MOWER WITH ENGINE STOPPED To “free-wheel” or move the mower around without theengine running, place the dump valve handle in theFREE-WHEEL position (Figure 4-2). Disengage theparking brake and move the mower by hand. The levermust be returned to the DRIVE position to drive t...

17 Section 4 4.14 ADJUSTING CUTTING HEIGHT The mower deck can be adjusted from a height of 1-inchto 4-1/2 inches at 1/2-inch intervals. To adjust the cuttingheight: 4.15 TILTING THE CUTTER DECK WARNING: Do not tilt the mower deck with the mower bladesrotating. Shut off the engine and remove theignit...

18 Section 4 Figure 4-16 Spring Removal 3. Raise the seat to lower the springs. Disconnect the springs from the spring bracket. Lower the seat. 4. Lower the deck to the ground. 5. Remove the two hairpins from the pushrod shafts. CAUTION: If necessary, use two persons to remove the cutterdeck. It is ...

19 Section 4 2. Install the cutter deck onto the push arm shafts just far enough to hold the deck in place. Align thecutter deck discharge chute with the blower intakechute (Figure 4-19) and push the cutter deck all theway onto the push arm shafts, inserting the dischargechute into the blower intake...

Section 5 20 Stringers - Occasional Low engine RPM Run engine at full RPM Blades of UncutGrass Ground speed too fast Slow speed to adjust for conditions Wet grass Cut grass after it has dried out Dull blades, incorrect sharpening Sharpen blades Deck plugged, grass accumulation Clean underside of dec...

Section 5 21 Uneven Cut on Flat Lift worn from blade Replace blade Ground - WavyHigh-Low Blade upside down Mount with cutting edge toward Appearance, ground Scalloped Cut, orRough Contour Deck plugged, grass accumulation Clean underside of deck Too much blade angle (deck pitch) Adjust pitch and leve...

Section 5 22 Scalping - Blades Low tire pressures Check and adjust pressures Hitting Dirt orCutting Very Close to G round speed too fast Slow speed to adjust for conditions the Ground Cutting too low May need to reduce ground speed,raise cutting height, change directionof cut, and/or change pitch an...

Section 6 23 ADJUSTMENTS 6.1 PARKING BRAKE ADJUSTMENT WARNING: Do not operate the mower if the parking brake isnot operable. Possible severe injury couldresult. The parking brake linkage should be adjusted wheneverthe parking brake lever is placed in the “ENGAGE”position and the parking brake will n...

Section 6 24 6.2 TRAVEL ADJUSTMENTS Neutral or tracking adjustments will need to be made if: A. The speed control lever is in neutral and the machine creeps forward or backward. (NeutralAdjustment) B. The mower pulls to one side or the other when traveling in a forward direction. (TrackingAdjustment...

Section 6 25 3. If the adjustments are okay and you need to adjust the neutral linkages, proceed with the NeutralAdjustment procedures. If the speed control requiresadjustment, adjust as follows: A. Loosen both jam nuts (A & B, Figure 6-6) on the adjusting rod (C). -NOTE- All turnbuckles have a ...

Section 6 26 4.5" D A E B C H J K L P Q N M Left Handle Right Handle SpeedControlLever Handles Aligned F G N L.H. SpeedControlLever Flat Turnbuckle B. To get both wheels to come out of neutral at the same time, adjust the left neutral turnbuckle (J,Figure 6-6). Adjust as follows: 1) If the mower...

Section 6 27 Tracking Adjustment -IMPORTANT- Before proceeding with this adjustment, be sure thatthe tire pressure in the three tires is correct, that thecaster wheels turn freely, and that the twotransmission drive belts are adjusted for the correcttension. The mower tracking should be adjusted if ...

Section 6 28 6.3 THROTTLE CONTROL AND CHOKE ADJUSTMENTS These adjustments must be performed by your Scagdealer to ensure proper and efficient running of theengine. Should either need adjustment, contact yourauthorized Scag service center. 6.4 ENGINE BELT ADJUSTMENT Figure 6-11 Transmission Belt Adju...

Section 7 29 MAINTENANCE 7.1 MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS HOURS Break-In 8 40 100 200 500 Procedure Comments (First 10) X Check all hardware for tightness X Check hydraulic oil level See paragraph 7.3 X Check all belts for tightness See paragraph 7.8 X Change engine oil and filt...

30 Section 7 MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS (CONT'D) HOURS Break-In 8 40 100 200 500 Procedure Comments (First 10) X Apply grease to fittings See paragraph 7.2 X Check hardware for tightness X Change engine oil filter See paragraph 7.4 X Check hydraulic oil level See paragraph 7.3...

Section 7 31 + Compatible Greases: Mobilix #2 found at Mobil Service Stations Ronex MP found at Exxon Service Stations Super Lube MEP #2 & Super Stay-M #2 found at Conoco Stations Shell Alvania #2 found at Shell Service Stations Lidok EP #2 found at industrial shops Figure 7.1 Lubrication Fittin...

32 Section 7 7.3 HYDRAULIC SYSTEM A. Checking Hydraulic Oil Level The hydraulic oil level should be checked after the first10 hours of operation. Thereafter, check the oil afterevery 200 hours of machine operation or monthly,whichever occurs first. -IMPORTANT- If the oil level is consistently low, c...

Section 7 33 B. Changing Engine Crankcase Oil After the first 5 hours of operation, change the enginecrankcase oil and replace the oil filter. Thereafter,change the engine crankcase oil after every 100 hours ofoperation or bi-weekly, whichever occurs first. Refer tothe Engine Operator’s Manual furni...

34 Section 7 7.5 ENGINE FUEL SYSTEM A. Filling the Fuel Tank Fill the fuel tank at the end of each operating day towithin 1 inch below the filler neck. Do not overfill. Useclean, fresh unleaded gasoline with a minimum octanerating of 87. B. Replacing In-Line Fuel Filter Element The in-line fuel filt...

Section 7 35 WARNING: Electric storage battery fluid contains sulfuricacid which is POISON and can cause SEVERECHEMICAL BURNS. Avoid contact of fluidwith eyes, skin, or clothing. Use properprotective gear when handling batteries. DONOT tip any battery beyond 45° angle in anydirection. If fluid conta...

36 Section 7 WARNING: 7.8 DRIVE BELTS After the first 2, 4, 8 and 10 hours of operation, check forproper tension on all drive belts and check for anydamage. Thereafter, check the belt tension after every100 hours of operation or bi-weekly, whichever occursfirst. 1. Using a belt tension gauge attache...

Section 7 37 Gearbox Pulley Gearbox Pulley Pump Pulley CheckTensionHere CheckTensionHere CheckTensionHere TensionIdler Pulley TensionIdler Pulley Idler Pulley Engine Pulley Electric ClutchPulley Blower Pulley Cutter DeckSpindle Pulley ENGINE DRIVE BELT TRANSMISSION DRIVE BELT BLOWER DRIVE BELT 7.9 C...

38 Section 7 B. Blade Sharpening -NOTE- If possible, use a file to sharpen the blade. Using a wheel grinder may burn the blade. -NOTE- DO NOT sharpen the blades beyond 1/3 of the width of the blade. 1. Sharpen the cutting edge at the same bevel as the original. See Figure 7-9. Sharpen only the top o...

Section 7 39 CheckPlugDipstick FullLine 1. Underneath the gearbox is a drain plug. This drain plug is accessible through a hole in the gearboxmounting plate and can be reached from the left sideof the mower. 2. Place a suitable container under the gearbox drain plug and remove the drain plug. 3. Aft...

40 Section 7 The fluid level in the cutter deck gearboxes (Figure 7-12)should be checked after every 100 hours of operation orbi-weekly, whichever occurs first. 1. Remove the foot plate from the cutter deck to gain access to the cutter deck gearboxes. 2. Clean and remove the check plug dipstick from...

2 13 1 2 3 4 5 5 52 7 10 9 11 15 13 5 14 12 5 13 8 16 11 9 17 18 49 19 21 20 23 24 25 57 28 52 21 35 36 37 38 39 40 35 41 33 31 32 30 34 39 53 44 43 3 2 6 3 44 51 61 50 47 8 48 9 8 16 45 46 5 42 55 54 22 49 CUTTER DECK 56 24 25 26 9 9 45 59 58 60 390S0058 58 27 62

3 Ref. Part.No. Number Description 35 48006-07 Retainer, Caster Wheel 36 48006-06 Roller Bearing, Caster Wheel 37 48307-08 Tapered Hex Nut, 5/16-24 38 48307-04 Rim Pair, Caster Wheel 39 48006-05 Hub Assembly with Bolts 40 48114-03 Grease Fitting 41 48307-02 Tire N/S 48006-03 Inner Tube 42 481311 Iso...

4 68 49 13 17 8 17 1 2 3 4 5 6 7 8 9 8 10 13 11 12 13 12 6 15 14 16 19 21 20 22 24 25 20 16 82 88 89 39 83 12 16 24 23 32 31 7 29 28 6 16 6 7 26 6 7 16 96 16 12 26 7 6 94 41 37 39 40 38 43 7 6 42 38 45 44 46 47 7 48 39 A 57 49 51 52 53 54 55 56 50 7 6 15 6 65 66 390S0059 16 48 7 47 48 7 58 59 58 61 ...

5 Ref. Part.No. Number Description 1 48015 Battery 2 42392 Cover, Battery 3 04003-12 Carriage Bolt, 5/16-18 x 3/4 4 421197 Box, Battery 5 04029-01 Wingnut, Plastic, 1/4-20 6 04021-09 Hex Locknut, Elastic Stop, 3/8-16 7 04041-07 Flatwasher, 3/8 (.391 x .938 x .105) 8 04029-03 Wingnut, Plastic, 3/8-16...

6 49 44 34 44 1 2 3 4 5 6 3 49 3 49 7 3 8 15 10 48 47 46 45 42 12 40 39 38 37 36 13 51 50 44 14 35 28 33 32 31 30 29 28 27 26 24 22 30 32 16 23 21 20 17 18 3 19 BLOWER ASSEMBLY 14 43 41 23 25 52 53 9 11 54 390S0060

8 1 2 3 4 5 6 31 3 8 9 8 10 13 30 29 27 15 PART OF ENGINE PART OF ENGINE PART OF ENGINE 12 18 22 23 12 19 18 20 26 27 28 16 25 32 33 32 34 ENGINE AND ATTACHING PARTS 8 14 390S0061 23 11 7 36 35 17 24 37 37

10 1 2 3 64 4 5 6 70 8 67 17 19 23 2 25 28 28 30 27 1 21 26 70 12 20 25 27 21 70 33 31 60 19 29 70 21 66 35 31 32 36 37 38 39 40 41 42 62 45 47 44 43 48 53 41 49 51 50 38 48 52 41 53 42 54 66 62 53 57 52 53 58 53 57 53 39 53 59 63 TRACTION DRIVE 70 65 55 45 50 64 61 56 41 35 34 65 7 68 9 67 68 15 22...

12 HYDRAULIC PUMP 390S0063 22 17 20 23 13 21 25 27 26 24 28 17 14 15 2 12 30 15 3 5 6 2 4 11 8 12 9 10 7 16 18 20 1 29 OVERHAUL SEAL KIT 19

14 HYDRO-GEAR AXLE ASSEMBLY 390S0064 11 9 8 15 18 19 22 21 20 6 16 3 1 12 2 7 8 9 10 5 4 17 16 14 31 26 35 30 33 34 29 28 32 27 26 25 24 13 23 25 24 26 35 34 29 30 31 32 33 28 27 26 13 23 BRAKE ASS'Y. FOR MODEL # 481223 BRAKE ASS'Y. FOR MODEL # 481224

16 DRIVE GEARBOX Ref. Part.No. Number Description - 481227 Gearbox, Drive 1 SGC203815 Capscrew, Socket Head, 3/8-16 x 1-1/2" 2 SGC200300 Plug, Socket Head 3 481417 Plug, Dipstick 4 SGC210004002563 Casting, Upper 5 SGC200900002617 Shaft Assembly, Cross 6 SGC209843 Seal - 1" 7 SGC00002616 Shaf...

20 3 2 4 6 14 15 40 40 10 16 17 18 20 46 42 19 22 21 27 26 25 45 24 23 28 44 29 30 31 32 33 34 35 36 37 390S0066 38 32 39 41 8 DECK DRIVE 1 5 5 43 13 1 11 9 8 12 44 15 7

22 1 2 3 4 5 6 7 8 9 10 11 12 15 13 14 13 21 14 19 22 20 16 17 18 23 24 25 26 27 28 29 31 32 26 33 34 30 30 76 25 36 38 22 37 24 34 28 29 31 27 23 41 42 43 38 37 40 39 46 68 67 45 44 47 390S0067 48 47 49 50 51 14 54 53 51 56 61 63 61 64 56 49 52 57 59 59 49 57 51 55 14 54 65 50 52 51 49 66 44 68 67 ...

24 PARKING BRAKE AND DUMP VALVE LINKAGES STR014 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 12 20 21 22 23 15 14 24 25 26 27 28 14 29 2 19 13 31 2 2 30

25 Ref. Part.No. Number Description 1 45808 Lever, Dump Valve 2 04062-02 Hairpin 3 44116 Rod, Brake - L.H. 4 04020-22 Hex Nut, 1/4-28 5 48343-03 Clevis 6 04064-12 Pin, Clevis, 1/4 x 3/4" 7 04001-20 Bolt, Hex Head, 3/8-16 x 1-1/2" 8 04030-04 Lockwasher, 3/8" 9 04041-07 Flatwasher, 3/8 (.3...

26 HYDRAULIC COMPONENTS AND LINES STR010 1 2 3 4 5 6 7 8 9 10 4 12 13 14 15 6 7 16 17 21 22 23 24 25 14 15 18 19 11 10 10 20 12A 26 27 28

28 24 1 2 3 4 5 6 7 20 9 8 10 11 12 13 14 17 15 16 390S0070 11 11 12 18 19 16 15 21 22 23 25 26 27 28 29 28 29 39 30 31 32 33 34 35 36 37 22 TO HOPPERHARNESS ELECTRICAL SYSTEM 38 40 A A

30 1 2 3 4 5 6 7 15 8 9 8 10 11 12 13 8 14 17 15 18 19 20 16 13 12 22 15 24 29 25 26 27 28 23 21 17 15 30 31 34 12 35 16 37 38 39 40 41 44 14 45 11 11 45 46 47 12 48 15 8 15 64 49 17 50 40 11 40 52 51 53 56 57 58 59 57 56 60 62 63 HOPPER 55 61 55 56 55 390S0071 33 32 67 SWITCH 42 65 66 43 54 36 68

32 STR004 HOPPER ACTUATOR MECHANISM 1 2 3 4 5 6 7 8 9 10 11 12 11 13 10 9 7 8 13 14 15 16 1718 19 18 15 27 7 20 8 26 25 5 29 24 24 26 25 23 28

34 REPLACEMENT DECALS AND INFORMATION PLATES 1 2 3 6 5 4 7 9 12 13 14 15 10 11 8 48072 HEAVY DUTY COMMERCIAL ROTATING BLADES AND BELTS WARNING KEEP HANDS, FEET & CLOTHING CLEARKEEP ALL GUARDS IN PLACESHUT OFF ENGINE & DISENGAGE BLADECLUTCH BEFORE SERVICINGCLEAR AREA OF DEBRIS BEFORE MOWINGUS...

35 Ref. Part.No. Number Description 1 48071 Decal, Danger - Spinning Blades 2 481040 Decal, Warning - Rotating Blades 3 48072 Decal, Heavy Duty Commercial 4 48404 Decal, Metalcraft - Made in USA 5 48656 Decal, Patent 6 48318 Decal, 48 7 48314 Decal, Scag 8 481377 Decal, Danger - Rotating Blower Blad...

36 SEAT SWITCH + - GRN INSTRUMENT PANEL HOURMETER CUTTER DECK SWITCH KEY SWITCH AMMETER ELECTRIC CLUTCH NEUTRAL SWITCH HOPPER SWITCH HOPPER BATTERY RELAY FORWARD ENGINE ADAPTER GROUND SOLENOID STARTER ENGINE FUSES20 AMP + - + - RED BLK BLK RED RED BLU BLU BLK BLU BLK BLK BLK BLK GRN WHT GRN RED BLK ...

If incorrectly used, this machine can cause severe injury. Those who use and maintain the machine should be trained in its proper use, warned of its dangers, and should read the entire manual before attempting to set up, operate, adjust or service the machine. LIMITED WARRANTY-COMMERCIAL EQUIPMENT A...