SCAG STT - Manuals

4 Section 2 2.4 OPERATION CONSIDERATIONS (CONT'D) 3. To prevent tipping or loss of control, do not start or stop suddenly, avoid unnecessary turns and travel at reduced speed. 4. When using any attachment, never direct the discharge of material toward bystanders or allow anyone near the machine whil...

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 Section 3 3.1 ENGINE General Type ............................................................................. Heavy Duty Industrial/Commercial Gasoline Brand ......................................................................................... Kohler, 22HP (Spec. #PS-76510) 25...

7 3.3 TRACTOR (CONT'D) Travel Speed: Forward ................................................................................ 0-10 MPH Reverse ................................................................................. 0-5 MPH 3.4 CUTTER DECK Type: ................................................

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 all mo...

9 Section 4 5. Ammeter (Figure 4-1). Indicates the condition of the charging system. When the engine is running the needle should be toward the positive end of the meter. If the needle is toward the negative end of the meter, this indicates a discharge condition and the machine should be taken in fo...

1 0 Section 4 2. Change the engine oil and oil filter after the first 5 hours of operation. (See Section 7.4.) 3. Check hydraulic oil level in reservoir. (See Section 7.3.) 4. Check for loose hardware. Tighten as needed. 5. Check interlock system for proper operation. (See Section 4.2.) 6. Check tir...

1 1 Section 4 To steer right while traveling in reverse, allow the right steering control lever to move forward. The further the control is allowed to move forward, the quicker the mower will turn right. To stop the reverse travel, allow the steering control levers to return to the neutral position....

1 2 Section 4 4.7 HILLSIDE OPERATION DO NOT operate on steep slopes. To check a slope,attempt to back up it (with the cutter deck down).If the machine can back up the slope without thewheels slipping, reduce speed and use extremecaution. ALWAYS FOLLOW OSHA APPROVEDOPERATION. 1. The mower has been de...

1 3 Section 4 4.10 REMOVING CLOGGED MATERIAL ROTATING BLADES NEVER PUT YOUR HANDS INTO THE DISCHARGECHUTE FOR ANY REASON! Shut off the engine andremove the key and only then use a stick or similarobject to remove material if clogging has occurred. 1. If the discharge chute becomes clogged, shut off ...

1 4 Section 4 4.13 ADJUSTING CUTTING HEIGHT The mower deck can be adjusted from a height of 1-inch to 6 inches at 1/2-inch intervals. To adjust the cutting height: Do not adjust the cutting height with the mowerblades rotating. Disengage the power to the cutterblades and then adjust cutting height. ...

Section 5 15 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 16 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 17 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 direction of cut, and/or change pitch ...

Section 6 18 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 whenever the parking brake lever is placed in the “ENGAGE” position and the parking brake will...

Section 6 19 B. The steering control levers are in the full forward position and the mower pulls to one side or the other when traveling in a forward direction. (Tracking Adjustment, See Page 20). Neutral Adjustment 1. Be sure the dump valve levers are in the run position and the steering control le...

Section 6 20 Tracking Adjustment Stop the engine and remove the key from theignition before making any adjustments. Waitfor all moving parts to come to a complete stopbefore beginning work. The engine and drive unit can get hot duringoperation causing burn injuries. Allow engineand drive components ...

Section 6 21 6.6 CUTTER DECK ADJUSTMENTS Cutter deck level, pitch and height are set at the factory. However, if these adjustments should ever need to be made, the following procedures will aid in obtaining the proper cutter deck adjustment. -NOTE- Before proceeding with the cutter deck adjustments,...

Section 6 22 Cutter Deck Height The cutter deck height adjustment is made to ensure that the cutter deck is cutting at the height indicated on the cutting height index gauge. To check for proper deck height, be sure that the mower is on a flat, level surface and the tires are properly inflated. 1. P...

Section 7 23 MAINTENANCE 7.1 MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS * Perform these maintenance procedures more frequently under extreme dusty or dirty conditions HOURS Break-In 8 40 100 200 500 Procedure Comments (First 10) X Check all hardware for tightness X Check hydraulic oil level S...

24 Section 7 + Compatible Greases: Mobilix #2 found at Mobil Service Stations Ronex MP found at Exxon Service StationsSuper Lube MEP #2 & Super Stay-M #2 found at Conoco StationsShell Alvania #2 found at Shell Service StationsLidok EP #2 found at industrial shops MAINTENANCE CHART - RECOMMENDED ...

Section 7 25 Figure 7.1 Lubrication Fitting Points 390S0145 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 6 3 5 7 2 1 8 4 2 5 3 9 9 CHASSIS GREASE( 500 HOURS / YEARL...

26 Section 7 7.3 HYDRAULIC SYSTEM A. Checking Hydraulic Oil Level The hydraulic oil level should be checked after the first 10 hours of operation. Thereafter, check the oil after every 200 hours of machine operation or monthly, whichever occurs first. - I M P O R T A N T - If the oil level is consis...

Section 7 27 7.4 ENGINE OIL A. Checking Engine Crankcase Oil Level The engine oil level should be checked after every 8 hours of operation or daily as instructed in the Engine Operator’s Manual furnished with this mower. Figure 7-4 Engine Fill Stick 390S0155 HYDRAULIC OIL FILTER 390S0156 ENGINE OIL ...

28 Section 7 C. Changing Engine Oil Filter After the first 5 hours of operation, replace the engine oil filter. Thereafter, replace the oil filter after every 200 hours of operation or every month, whichever occurs first. Refer to Engine Operator’s Manual for instructions. 7.5 ENGINE FUEL SYSTEM A. ...

Section 7 29 Electric storage battery fluid containssulfuric acid which is POISON and cancause SEVERE CHEMICAL BURNS. Avoidcontact of fluid with eyes, skin, or clothing.Use proper protective gear when handlingbatteries. DO NOT tip any battery beyond45° angle in any direction. If fluid contactdoes oc...

30 Section 7 WARNING: BATTERIES PRODUCE EXPLOSIVE GASES.Charge the battery in a well ventilated spaceso gases produced while charging candissipate. Charging rates between 3 and 50 amperes are satisfactory if excessive gassing or spewing of electrolyte does not occur or the battery does not feel exce...

Section 7 31 Figure 7-9 Blade Sharpening 2. Check the balance of the blade. If the blades are out of balance, vibration and premature wear can occur. See your authorized Scag dealer for blade balancing or special tools, if you choose to balance your own blades. C. Blade Replacement 1. Remove the ign...

32 Section 7 T h e c u t t e r d e c k g e a r b o x c a n r e a c h h i g hoperating temperatures. Allow the cutter deckgearbox to cool before servicing. CAUTION: 7.11 CUTTER DECK GEARBOX A. Checking Lubricant Level The fluid level in the cutter deck gearbox (Figure 7-12) should be checked after ev...

Section 7 33 3. Replace the radiator cap. Push down on the cap and turn clockwise until it stops. -NOTE- The cooling system should be flushed andthe coolant replaced every 500 hours of op-eration or annually. See your Scag dealer forproper coolant replacement. B. Cleaning the Radiator Debris Screen ...

3 5 Section 8 35 43298 Spindle Shaft x x 36 481024 Seal, Top x x 37 481022 Bearing Assembly x x 38 43294 Spindle Housing x x 39 43312 Spacer, Outside x x 40 43296 Spacer, Inside x x 41 481025 Seal, Bottom x x 42 43297 Spindle Bushing, Bottom x x 43 481035 Nut, Special 1 - 1/16-18 x x 44 48114-04 Gre...

3 8 Section 8 STT99SMC SHEET METAL COMPONENTS A 2 20 46 48 47 48 21 3 15 49 50 26 30 25 12 15 15 14 13 12 11 10 16 19 18 15 9 7 8 6 5 4 1 17 23 24 A 31 32 33 34 29 33 36 37 40 39 38 41 42 43 55 22 35 44 45 15 51 53 52 27 28 56

4 0 Section 8 STT99DDC DECK DRIVE COMPONENTS A 62 7 8 36 37 13 7 66 64 59 6 65 60 58 61 54 19 27 8 10 55 27 7 8 36 28 8 31 9 49 37 13 33 34 1 2 5 4 21 24 23 22 20 18 3 56 11 32 38 45 47 31 41 34 35 42 48 17 36 63 62 57 67 29 8 6 7 14 53 52 50 51 4 46 29 48 44 43 31 12 15 25 16 49 A C B B C FRAME 30 ...

4 2 Section 8 STT99EAP-KH ENGINE AND ATTACHING PARTS - KOHLER 1 3 7 88A 2 5 9 10 9 14 10 12 13 10 12 15 20 4 6 FRAME REF. PUMP MTG. WELDMENT 11 17 18 19 16

4 4 Section 8 STT99EAP-K ENGINE AND ATTACHING PARTS - KAWASAKI 1 3 7 8 2 5 9 21 10 13 14 10 12 13 10 12 15 20 4 6 FRAME REF. PUMP MTG. WELDMENT 11 17 18 19 16 22

4 6 Section 8 STT99B&SC BRAKE AND STEERING COMPONENTS A A 1 2 8 11 33 13 17 20 12 14 19 23 41 11 21 34 36 57 73 48 47 46 5 23 53 42 43 44 45 15 56 70 69 68 71 62 15 65 63 60 64 67 60 52 41 34 23 51 22 50 61 59 9 22 34 35 TO RH PUMP TO LH PUMP 37 36 27 28 35 33 3 34 31 30 29 10 9 6 32 7 13 B 24 9...

4 8 Section 8 STT99F&HS390S0166 FUEL AND HYDRAULIC SYSTEM F A B C E K J D G G TO ENGINE L J E K D C F 3 4 1 25 42 20 42 20 A 22 62 28 33 26 20 16 17 33 18 6 4 1 3 21 20 22 27 28 19 26 21 22 24 18 20 16 5 7 17 13 12 11 10 9 8 15 29 4 41 20 43 31 32 16 40 18 24 20 39 15 42 20 22 42 20 38 36 15 37 ...

5 4 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

5 6 Section 8 REPLACEMENT DECALS AND INFORMATION PLATES 1 2 3 5 8 6 4 9 12 13 14 7 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 CAUTION IN DIRECTING DIS...

5 7 Section 8 1 48071 Decal, Danger-Spining Blades 2 481040 Decal, Warning-Rotating Blades 3 48319 Decal, 52 48320 Decal, 61 4 481272 Decal, Fuel Tank 5 48656 Decal, Patents 6 481568 Decal, Traction Control 7 48072 Decal, Heavy Duty Commercial 8 48404 Decal, MetalCraft-Made In USA 9 481039 Decal, Be...

LIMITED WARRANTY-COMMERCIAL EQUIPMENT Any part of the Scag commercial mower manufactured by Scag Power Equipment and found, in the reasonable judg- ment of Scag, to be defective in materials or workmanship, will be repaired or replaced by an Authorized Scag Service Dealer without charge for parts an...