Instruction/ maintenance manual of the product STHM Scag Power Equipment
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MODEL STHM OPERATOR’S MANUAL THIS MANUAL CONT AINS THE OPERA TING INSTRUCTIONS AND SAFETY INFORMA- TION FOR YOUR SCAG MOWER. READING THIS MANUAL CAN PROVIDE YOU WITH ASSIST ANCE IN MAINTENANCE AND AD- JUSTMENT PROCEDURES TO KEEP YOUR MOWER PERFORMING T O MAXIMUM EFFI- CIENCY .
F AILURE TO FOLLOW SAFE OPERA TING PRACTICES MA Y RESUL T IN SERIOUS INJUR Y . * Keep all shields in place, especially the grass discharge chute. * Before performing any maintenance or service, stop the machine and remove the spark plug wire and ignition key .
T ABLE OF CONTENTS MODEL STHM SUBJECT P A GE Introduction .................................................................................................. 1 General Safety Instructions ................................................................
T ABLE OF CONTENTS (CONTINUED) SUBJECT P A GE Illustrated Parts List SM 61V , 72A Cutter Deck...................................................................... .. . 2 2- 2 3 Engine Deck .............................................................
1 SIGNAL W ORDS This symbol means “Attention! Become Alert! Your Safety is Involved!". The symbol is used with the following signal words to attract your attention to safety messages found on the decals and throughout this manual. The message that follows the symbol contains important information about safety.
2 CE Mark T ransmission Choke On/Start Spring T ension on Idler Oil Off/Stop SYMBOL DESCRIPTION SYMBOL DESCRIPTION ISO Symbols Spinning Blade 48071S Parking Brake WARNING FALLING HAZARD USE ONLY SCAG .
3 Slow Fast Cutting Element - Engage Cutting Element - Basic Symbol Cutting Element - Disengage Continuously V ariable - Linear Keep Bystanders A way Pinch Point 481039S SYMBOL DESCRIPTION SYMBOL DESC.
4 BEFORE OPERA TING 1. NEVER allow children to operate this riding mower . Do not allow adults to operate this machine without proper instructions. 2. DO NOT mow when children and/or others are present. Keep children out of the mowing area and in the watchful care of a responsible adult other than the operator .
5 10. Keep hands and feet away from cutting units. 11. Shut the engine off and wait until the blades come to a complete stop before removing the grass catcher container. 12. Never raise the cutter deck while the blades are rotating. 13. Always park the mower and/or start the engine on a level surface.
6 MAINTENANCE AND ST ORA GE 1. Disconnect the spark plug wire from the spark plug to prevent accidental starting of the engine when servicing, adjusting or storing the machine. 2. If the mower must be tipped to perform mainte- nance or adjustment, remove the battery, drain the gasoline from the fuel tank and the oil from the crankcase.
7 Hydraulic fluid is under high pressure. Keep body and hands away from pinholes or nozzles that eject hydraulic fluid under high pressure. If you need service on your hydraulic system, please see your authorized Scag dealer .
8 MO WER OPERA TION -NOTE- Use gasoline with an octane rating no less than 87. * The right hand foot pedal must be in the NEUTRAL position. * The blade clutch switch must be in the OFF position. * The parking brake must be ON. 3. Start the engine: * Choke as required.
9 6. When driving over curbs, disengage the cutter blades and raise the cutter deck to clear the curb. Drive forward over the curb. After the curb is clear, lower the cutter deck back to normal operating position. Be sure to leave slack in the cable after lowering the cutter deck.
10 If the drive wheels consistently rotate when foot pedal control is in neutral, go to step 4. If the drive wheels inconsistently rotate, i.e. drive wheels sometimes rotate and sometimes do not when foot pedal is not depressed, then check neutral adjustment bolt for "zero free play" in neutral control spring .
11 Adjust the tension by tightening or loosening the nut on the J-bolt. (See Figure 9). 4. Replace the belt covers. BEL T 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 Dealer for belt adjustment.
12 Adjusting the blade height can be done by moving any number of the five smaller spacers on the blade mount- ing bolts to the top or to the bottom of the spindle shaft. All blades should be positioned equally (See Figure 10). The unit is shipped with one spacer on top of spindle and four underneath (See Figure 10).
13 A . 3" Position - baffle is installed using the top set of holes on the front baffle welded inside the cutter deck. (See Figure 15). The Advantage cutter deck will deliver the best quality-of-cut in very tall, wiry , tough to cut grass.
14 3. Move the Custom-Cut Baffle to desired position. (See Figures 15 through 17 for position). 4. Reinstall the mounting hardware as shown. (See Figures 15 though 17). T orque hardware to 39ft.lbs. Figure 15. 3" Custom-Cut Baffle Position Figure 17.
15 8 Hours (Daily) 25 Hours 40 Hours (Weekly) 100 Hours (Biweekly) 200 Hours (Monthly) X X X X X X X X X X X X 500 Hours or Annually * COMMENTS Add oil as needed - SAE 10W30 Do not over fill MORE OFTE.
16 Stringers - Occasional Low engine RPM Run engine at full 3600 RPM Blades of Uncut Grass Ground speed too fast Slow speed to adjust for conditions Wet grass Cut grass after it has dried out Dull bla.
17 CONDITION TROUBLESHOOTING CAUSE CURE Sloping Ridge Across Tire pressures not equal Check and adjust tire pressure Width of Cutting Path Wheels uneven Check and adjust tire pressure Deck mounted inc.
18 Scalping - Blades Low tire pressures Check and adjust pressures Hitting Dirt or Cutting Very Close to Ground speed too fast Slow speed to adjust for conditions the Ground Cutting too low May need t.
19 TECHNICAL SPECIFICA TIONS ENGINES General Type: Heavy duty industrial/commercial Brand: Kohler 23 HP Pro Series (Spec PS-75523) Models: CV23S Horsepower: 23HP @ 3600 RPM Type: 4 cycle gas, twin cyl.
20 TECHNICAL SPECIFICA TIONS (CON'T) CUTTER DECKS SM61V, SM 72A Type: Out-front design with anti-scalp roller and pneumatic shock absorber for deck flotation Construction: 10-gauge steel with 7-gauge (3/16") steel skirt Cutting Width: 61.0 " (155.
21 NOTES.
22 SM-61V & SM-72A CUTTER DECK 54 69 85 80 38 80 85 84 45 86 83 4 81 82 72 73 76 78 77 79 75 21 71 25 70 3 8 67 66 65 8 68 1 55 56 38 60 64 63 59 58 62 6 5 5 2 3 15 16 17 27 28 7 8 9 26 10 7 9 13 .
23 1 461861 Cutter Deck, Velocity + (Incl. decals) x 1 461864 Cutter Deck, Advantage (Incl. decals) x 2 461846 Discharge Chute, Velocity Plus x 461296 Discharge Chute, Advantage x 3 04001-09 Bolt, 5/16-18 x 1" Hex Head x x 4 04021-10 Nut, 5/16-18 Elastic Stop x x 5 04029-03 Wing Nut, 3/8-16 x x 6 461583 Be lt Cover (Incl.
24 ENGINE DECK 20 19 23 22 24 25 22 28 31 30 31 28 38 36 38 37 33 45 51 46 40 35 34 56 65 75 57 58 62 61 69 72 71 66 102 19 29 50 16 76 78 79 91 81 92 19 73 69 68 54 70 67 86 87 89 16 83 83 16 16 16 9.
25 Ref. Part No. Number Description 1 04003-01 Carriage Bolt, 1/4-20 x 6" 2 423308 Battery Box 3 04029-01 Nut, Wing 1/4-20 4 48015 Battery 5 42392 Battery Cover 6 48099 Insulation, Battery Cover 7 48292 Pad, Fuel Tank Strap 8 481556 Cap, Fuel Tank 9 46846 Fuel Tank Assy.
26 SGB027 UPPER HYDRAULICS 5 2 4 7 6 5 12 10 8 12 13 11 1 3 9 16 14 14 14 9 9 24 22 14 9 15 A 14 23 5 A 3 21 18 19 17 20.
27 Ref. Part No. Number Description 1 48711 Tank, Hydraulic 2 481164 Cap, Hydraulic Tank 3 48634 Hose, Pump to Oil Cooler 4 48942 Hose, Oil Cooler to Tank 5 48136-04 Clamp, Hose 6 48936-01 Coupling, F.
28 H G A B C D E F C G D E J F B A H J I I LOWER HYDRAULICS 11 1 10 22 2 20 31 30 25 13 15 9 6 23 10 21 3 17 15 14 13 13 11 13 12 5 6 8 16 18 17 4 20 19 19 20 25 4 28 28 9 7 32 32 26 24 26 26 5 26 26 .
29 Ref. Part No. Number Description 1 04017-04 Capscrew, 1/4-20 x1/2 Serr. Fl. Hex Head 2 48462-02 Filter Head 3 48758 Filter, Spin-On Lube 4 48991 Hose Assembly 5 48688 Hose Assembly 6 48350-03 Elbow.
30 10 11 14 15 12 13 17 16 18 17 14 20 8 5 9 21 10 23 24 11 13 15 2 26 14 8 5 7 6 5 4 5 4 31 30 28 11 27 3 1 6 31 CONTROL LINKAGE 29 19 25 12 sgb011 CONTROL LINKA GE.
31 Ref. Part No. Number Description 1 46328 Control Linkage, Bellcrank (Includes 30, 31) 2 04040-15 Flatwasher, 5/16 (.375 x .875 x .083) 3 04001-13 Bolt, Hex Head 5/16-18 x 2-3/4" 4 04001-19 Bolt, Hex Head 3/8-16 x 1" 5 04040-05 Flatwasher, 3/8 (.
32 8 7 2 C 21 3 9 6 13 4 9 10 14 15 12 21 15 5 13 19 10 A E F 11 17 16 17 18 18 9 24 21 26 23 22 28 30 31 32 33 29 27 31 32 33 35 34 25 25 INSTRUMENT PANEL AND ELECTRICAL COMPONENTS D 1 21 B 20 STHM99.
33 INSTR UMENT P ANEL AND ELECTRICAL COMPONENTS Ref. Part No. Number Description 1 461360 Instrument Panel (includes Decal) 2 48298 Blade Fuse, 20 amp. 3 482289 Decal, Instrument Panel 4 48023 Hour Meter (includes Bracket and Hardware A, B, C) A * Hour Meter Bracket B * Lockwasher, #10 Ext.
34 14 17 RIDER FRAME ASSEMBLY 19 22 23 24 24 25 27 28 29 30 36 32 33 34 35 38 39 19 31 47 48 45 49 50 51 52 53 52 56 57 60 58 52 51 42 64 61 62 63 65 1 2 3 4 5 6 7 5 8 21 20 18 14 16 15 9 10 11 12 13 .
35 36 481894 Rim Only 37 48005 Rear Wheel Assy. (includes items 33-36, 37A) 37A 481893 Tire Only 38 43021 Sleeve, Rear Wheel 39 43020-02 Spacer, Rear Wheel 40 48828 Cable, Steering (includes Hardware).
36 4 3 2 5 10 6 7 9 10 11 6 14 15 5 13 11 1 12 11 10 5 10 6 6 11 6 11 11 24 23 22 21 20 19 18 17 16 4 12 BRAKE LINKAGE 8 Deck Weldment 6 SGB050.
37 Ref. Part No. Number Description BRAKE LINKA GE 1 04019-04 Serr. Fl. HH Nut, 3/8-16 2 04021-05 Hex Locknut, 3/8-16 3 43032 Swivel 4 04062-01 Hairpin Cotter (.
38 RELA Y RED BLUE BLA CK SC481275 WIRE HARNESS WITH RELAY PART NO. 481275 GREEN To Starter Red Battery Cable Post To Blue Wire From Engine To Starter To Engine Ground ENGINE GND ST ARTER SOLENOID T O.
39 14 48044 Winch Handle 15 205015 Handle Nut 16 204364 Handle Spring 17 208328 Shaft Bushing 18 404163 Pressure Washer 19 404164 Ratchet Wheel 20 204362 Pressure Plate 21 204012 Shaft Bushing 22 205116 E-Ring 23 304758 Drive Shaft 24 04017-27 Serr. Flg.
40 Ref. Part No. Number Description 6 482289 Decal, Instrument Panel 7 481039 Decal, Warning-Belt Cover 8 48993 Decal, Dump Valve 9 48404 Decal, Metalcraft-Made In USA 10 483201 Decal, 61 Velocity Plus 11 481956 Decal, 72 Advantage 12 482817 Decal, Height of Cut Ref.
LIMITED W ARRANTY - COMMERCIAL EQUIPMENT Any part of the Scag commercial mower manufactured by Scag Power Equipment and found, in the reasonable judgment of Scag, to be defective in materials or workmanship, will be repaired or replaced by an Authorized Scag Service Dealer without charge for parts and labor during the periods specified below .
An important point after buying a device Scag Power Equipment STHM (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Scag Power Equipment STHM yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Scag Power Equipment STHM - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Scag Power Equipment STHM you will learn all the available features of the product, as well as information on its operation. The information that you get Scag Power Equipment STHM will certainly help you make a decision on the purchase.
If you already are a holder of Scag Power Equipment STHM, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Scag Power Equipment STHM.
However, one of the most important roles played by the user manual is to help in solving problems with Scag Power Equipment STHM. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Scag Power Equipment STHM along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
