Scag Power Equipment SM-72 Operator's Manual

MODEL STHMOPERATOR’S MANUALTHIS MANUAL CONTAINS THE OPERATINGINSTRUCTIONS AND SAFETY INFORMA-TION FOR YOUR SCAG MOWER. READINGTHIS MANUAL CAN PROVIDE

6ADJUSTMENTSPARKING BRAKEMinor brake adjustments can be made by looseningthe top nut on both brake cables (see figure 4).Back the nuts off approximate

7Use of Tension Gaugesgb0075. Check the adjustment of the right foot control pedalfor full forward speed. The pedal should rest on thefoot plate when

8Adjust the tension by tightening or looseningthe nut on the J-bolt.4. Replace the belt covers.BELT ALIGNMENTBelt alignment is important for proper pe

9There are three positions for mounting the cutter deck(See Figure 11). For cutting in the lowest position,mount the cutter deck in the top hole (A).

108 Hours (Daily)25 Hours40 Hours (Weekly)100 Hours (Biweekly)200 Hours (Monthly)XXXXXXXXXXXX500 Hours or Annually*COMMENTSAdd oil as needed - SAE 10W

11Stringers - Occasional Low engine RPM Run engine at full 3600 RPMBlades of UncutGrass Ground speed too fast Slow speed to adjust for conditionsWet g

12CONDITIONTROUBLESHOOTINGCAUSECURESloping Ridge Across Tire pressures not equal Check and adjust tire pressureWidth of Cutting PathWheels uneven Chec

13Scalping - Blades Low tire pressures Check and adjust pressuresHitting Dirt orCutting Very Close to Ground speed too fast Slow speed to adjust for c

14TECHNICAL SPECIFICATIONSENGINESGeneral Type: Heavy duty industrial/commercialBrand: Kohler 23 HP Pro Series (Spec PS-75523)Models: CV23SHorsepower:

15TECHNICAL SPECIFICATIONS (CON'T)CUTTER DECKS SM 61, SM61A, SM 72Type: Out-front design with anti-scalp roller and pneumatic shockabsorber for

FAILURE TO FOLLOW SAFE OPERATING PRACTICES MAY RESULT IN SERIOUS INJURY.* Keep all shields in place, especially the grass discharge chute.* Before p

16SM-52, SM-61 & SM-72 CUTTER DECK5469858638868584458083 481827273757678777975217125703867666586815556386064635958626552 3 15 16 17 27 287892610

171 461139 Cutter Deck (Includes decals) x1 461143 Cutter Deck (Includes decals) x1 461146 Cutter Deck, Advantage (Incl. decals) x2 461055 Discharge C

18ENGINE DECK2019232224252228313031283836383733455146403534566575575862616972716610219295016767879918192197369685470678687891683831616 169619199419181

19Ref. PartNo. Number Description1 04003-01 Carriage Bolt, 1/4-20 x 6"2 421703 Battery Box3 04029-01 Nut, Wing 1/4-204 48015 Battery5 42392 Batte

20SGB027UPPER HYDRAULICS524765121081213111391614141499242214915A14235A32118191720

21Ref. PartNo. Number Description1 48711 Tank, Hydraulic2 481164 Cap, Hydraulic Tank3 48634 Hose, Pump to Oil Cooler4 48942 Hose, Oil Cooler to Tank5

22HGABCDEFCGDEJFBAHJIILOWER HYDRAULICS111102222031302513159623102131715141313111312568161817420191920254282897323226242626526262828271829262726211333L

23Ref. PartNo. Number Description1 04017-04 Capscrew, 1/4-20 x1/2 Serr. Fl. Hex Head2 48462-02 Filter Head3 48758 Filter, Spin-On Lube4 48991 Hose Ass

24101114151213171618171420859211023241113152261485765454313028112731631CONTROL LINKAGE29192512sgb011CONTROL LINKAGE

25Ref. PartNo. Number Description1 46328 Control Linkage, Bellcrank (Includes 30, 31)2 04040-15 Flatwasher, 5/16 (.375 x .875 x .083)3 04001-13 Bolt,

TABLE OF CONTENTSMODEL STHMSUBJECT PAGEIntroduction ...

26872C2139613491014151221155131910AEF1117161718189242126 23222830313233292731323335342525INSTRUMENT PANEL AND ELECTRICAL COMPONENTSD121B20STHM99IP&

27INSTRUMENT PANEL AND ELECTRICAL COMPONENTSRef. PartNo. Number Description1 422529 Instrument Panel (includes Decal)2 48298 Blade Fuse, 20 amp.3 4816

281417RIDER FRAME ASSEMBLY1922232424252728293036323334353839193147484549505152535256576058525142646162636512345675821 20181416159101112132640464143424

2936 481894 Rim Only37 48005 Rear Wheel Assy. (Includes items 33-36, 37A)37A 481893 Tire Only38 43021 Sleeve, Rear Wheel39 43020-02 Spacer, Rear Wheel

30432510679101161415513111121110510661161111242322212019181716412BRAKE LINKAGE8Deck Weldment6SGB050

31Ref. PartNo. Number DescriptionBRAKE LINKAGE1 04019-04 Serr. Fl. HH Nut, 3/8-162 04021-05 Hex Locknut, 3/8-163 43032 Swivel4 04062-01 Hairpin Cotter

32RELAYREDBLUEBLACKSC481275WIRE HARNESS WITH RELAYPART NO. 481275GREENTo StarterRed Battery Cable PostTo Blue WireFrom EngineTo StarterTo EngineGround

3314 48044 Winch Handle15 205015 Handle Nut16 204364 Handle Spring17 204359 Shaft Bushing18 404163 Pressure Washer19 404164 Ratchet Wheel20 204362 Pre

34 1 2, 2a, 2b 3 46 78 9 10, 11, 124,885,9034,487,0064,920,7334,967,5434,991,3824,

LIMITED WARRANTY-COMMERCIAL EQUIPMENTAny part of the Scag commercial mower manufactured by Scag Power Equipment and found, in the reasonable judgmento

TABLE OF CONTENTS(CONTINUED)SUBJECT PAGEIllustrated Parts ListSM 61, 61A, 72 Cutter Deck...

PART NO. 03076PRINTED 6/99PRINTED IN USA© 1999SCAG POWER EQUIPMENTDIVISION OF METALCRAFT OF MAYVILLE, INC.

1SIGNAL WORDSThis symbol means “Attention! Become Alert!“Attention! Become Alert!“Attention! Become Alert!“Attention! Become Alert!“Attention! Become

2BEFORE OPERATING1. Know the operating controls and how to stopquickly.2. Do not allow children to operate the machine.Do not allow adults to operate

313. Do not pass or stand on the grass discharge sideof any mower with the engine running. Stop thecutter blades when another person approaches.9. If

49. Always store gasoline in a safety-approved, redcontainer.10. Be careful when servicing the battery as it con-tains acid, which is corrosive and co

5-NOTE-When the PTO is engaged or (possibly) disen-gaged, a squealing sound from the underside ofthe machine is normal. It is caused by theelectric c