Scag Power Equipment SM-72 Operations Instructions

PART NO. 03223 Rev. 1PRINTED 3/2008PRINTED IN USA© 2008Scag Power EquipmentDivision of Metalcraft of Mayville, Inc.Congratulations on owning a Scag m

6RSection 2 WARNINGHydraulic fluid is under high pressure. Keep body and hands away from pinholes or nozzles that eject hydraulic fluid under high pre

7RSection 2SAFETY AND INSTRUCTIONAL DECALS2.6 WARNINGDO NOT OPERATE WITHOUT DISCHARGE CHUTE, MULCHING KIT, OR ENTIRE GRASS CATCHER INSTALLED48340548

8RSection 3SPECIFICATIONSENGINE3.1 General Type ...Heavy

9RSection 3Travel Speed:Forward ...

10RSection 4 CAUTIONDo not attempt to operate this mower unless you have read this manual. Learn the location and purpose of all controls and instru

11RSection 4SAFETY INTERLOCK SYSTEM4.2 WARNINGNever operate the mower with the interlock system disconnected or malfunctioning. Do not disengag

12RSection 4GROUND TRAVEL4.5 - IMPORTANT -If you are not familiar with the operation of this machine, the steering and ground speed operations should

13RSection 4SGB003Reverse Operation Figure 4-3. Depress Heel End of PedalTo stop the reverse travel, release the drive pedal to the neutral position.-

14RSection 4PARKING THE MOWER4.8 Park the machine on a flat, level surface only. Do not 1. park the machine on an incline.Place the drive pedal in the

15RSection 4- NOTE -To prevent damage to the hydraulic system, do not exceed 1MPH when moving the machine in the freewheel position.RECOMMENDATIONS

WARNINGFAILURE TO FOLLOW SAFE OPERATING PRACTICES MAY RESULT IN SERIOUS INJURY OR DEATH.Read this manual completely as well as other manuals that cam

16RSection 5CONDITION CAUSE CURESTRINGERS - OCCASIONAL BLADES OF UNCUT GRASSWidth of DeckSGB020Low engine RPM Run engine at full RPMGround speed too

17RSection 5CONDITION CAUSE CUREUNEVEN CUT ON FL AT GROUND - WAVY HIGH-LOW APPEARANCE, SCALLOPED CUT, OR ROUGH CONTOURWidth of DeckSGB020Lift w

18RSection 5CONDITION CAUSE CURESCALPING - BLADES HITTING DIRT OR CUTTING VERY CLOSE TO THE GROUNDWidth of DeckSGB022Low tire pressures Check and adju

19RSection 6PARKING BRAKE ADJUSTMENT6.1 WARNINGDo not operate the mower if the parking brake is not operable. Possible severe injury could resul

20RSection 6SGB029Neutral ControlSpring9/16" SocketNeutral AdjustmentFigure 6-2. Check the adjustment of the right foot control pedal 5. for full

21RSection 6To adjust blade drive belt:3. A. Using a belt tension gauge, check the belt tension so that the belt moves 1/2" with 10 pounds of pr

22RSection 6SGB053CUTTERDECKHEX NUT-TORQUETO 75 LB-FTSPINDLESHAFTSPINDLE ASSEMBLYWASHERHEX HEAD BOLTCUTTERBLADEHEX HEADBOLT / NUTCUTTER BLADESPACERS 1

23RSection 6CUSTOM-CUT BAFFLE ADJUSTMENT6.7 The Custom-Cut Baffle is designed to deliver optimum airflow and superior cutting performance in any type

24RSection 6Slot “A” Hole 1 Hole 2 Hole 3Height (inches) 3” 3-1/2” 4”Custom-Cut Baffle AdjustmentMounting Slot Mounting Hardware Lo

25RSection 7MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS7.1 HOURSPROCEDURE COMMENTSBREAK-IN (FIRST 10)8 40 100 200 500XCh e ck a l l h a r d

IRTable of ContentsTABLE OF CONTENTSGENERAL INFORMATIONSECTION 1 - ...

26RSection 7MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS (CONT'D)HOURSPROCEDURE COMMENTSBREAK-IN (FIRST 10)8 40 100 200 500XApply grease to

27RSection 7HYDRAULIC SYSTEM7.3 A. CHECKING HYDRAULIC OIL LEVELThe hydraulic oil level should be checked after the first 10 hours of operation. Therea

28RSection 7ENGINE FUEL SYSTEM7.5 DANGERTo avoid injury from burns, allow the mower to cool before removing the fuel tank cap and refueling.A.

29RSection 7Replace gas cap and tighten securely.10. B. REPLACING IN-LINE FUEL FILTER ELEMENTSThe engine fuel filter should be replaced after every 50

30RSection 7B. CHARGING THE BATTERYRefer to the battery charger’s manual for specific instructions.Under normal conditions the engine’s alternator wil

31RSection 7CUTTER BLADES7.9 A. BLADE INSPECTIONRemove the ignition key before servicing the blades.1. Raise the mower deck to the highest position. P

32RSection 7WASHERHEX HEAD BOLTCUTTERBLADESPINDLE ASSEMBLYCUTTER BLADESPACERHEX HEADBOLT / NUTCUTTERDECKSPINDLESHAFTHEX NUT-TORQUETO 75 LB-FTBlade Rep

33RSection 8SCAG APPROVED ATTACHMENTS AND 8.1 ACCESSORIESAttachments and accessories manufactured by companies other than Scag Power Equipment are not

34RSection 8SM-61V & SM-72A CUTTER DECK5469858038808584458683 4818272737678777975217125703867666586815556386064635958626552 3 15 16 17 27 2878926

35RSection 8Ref. No.Part No. Description 61 72Ref. No.Part No. Description 61 721234567891011121314151617181920212223242526272829303132333435363738394

IIRTable of ContentsADJUSTMENTSSECTION 6 - ...196.1 PA

36RSection 82019232224252228313031283836383733455146403534566575575862616972716610219295016767879918192197369685470678687891683831616 1696191994191819

37RSection 8Ref. No.Part No. DescriptionRef. No.Part No. Description123456789101112131415161718192021222324252627282930313233343535A363738394041424344

38RSection 8UPPER HYDRAULICSSGB027524765121081213111391614141499242214915A14235A32118191720

39RSection 8Ref. No.Part No. Description12345678910111213141516171819202122232448711481164486344894248136-0448936-0148572-054864504003-1242127948350-0

40RSection 8LOWER HYDRAULICS

41RSection 8LOWER HYDRAULICSRef. No.Part No. Description12345678910111213141516171819202122232425262728293031323304017-0448462-0248758489914868848350-

42RSection 8CONTROL LINKAGE10111415121317161817142085921102223111315225148576545430292711263163028192412sgb011

43RSection 8CONTROL LINKAGERef. No.Part No. Description1234567891011121314151617181920212223242526272829304632804040-1504001-1304001-1904040-054321242

44RSection 8INSTRUMENT PANEL AND ELECTRICAL COMPONENTS872C21396491014151221155131910AEF1117161718189242126 23222830313233292731323335342525D121B20STHM

45RSection 8INSTRUMENT PANEL AND ELECTRICAL COMPONENTSRef. No.Part No. Description1234ABC5DEF678910111213141516171819202122232425262728293031323334354

1RSection 1INTRODUCTION1.1 Your mower was built to the highest standards in the industry. However, the prolonged life and maximum efficiency of your m

46RSection 8RIDER FRAME ASSEMBLY1722232424252728293036323334353839193147484549505152535256576058525142646162636512345675821 20199101112132640464143424

47RSection 8RIDER FRAME ASSEMBLYRef. No.Part No. DescriptionRef. No.Part No. Description12345678910111213141516171819202122232425262728293031323334354

48RSection 8BRAKE LINKAGE4325106791011614155131111211105106611611112423222120191817164128Part of EngineDeck Weldment6SGB050

49RSection 8BRAKE LINKAGERef. No.Part No. Description12345678910111213141516171819202122232404019-0404021-054303204062-0104001-32432124213384834245504

50RSection 8WINCH LIFT SYSTEM11 9141213251920232221412567 16SteeringFrame832418171015sgb008

51RSection 8WINCH LIFT SYSTEMRef. No.Part No. Description123456789101112131415161718192021222324254804320480340440920516720505540416620436342127480450

52RSection 8REPLACEMENT DECALS AND INFORMATION PLATES1346879131011, 122, 2a, 2b5Heavy-DutyCommercial481971SPINNING BLADESKEEP CLEARBLADE CONTACT &

53RSection 8REPLACEMENT DECALS AND INFORMATION PLATESRef. No.Part No. Description122A2B345678910111213**4819714831448968488254834074834064830444840448

54RSection 8ELECTRICAL WIRING HARNESSRELAYWIRE HARNESS WITH RELAYPART NO. 481275To StarterRed Battery Cable PostTo Blue WireFrom EngineTo StarterTo En

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

2RSection 1SYMBOLS1.4 SYMBOL DESCRIPTION SYMBOL DESCRIPTION Choke Transmission Parking Brake 48071SSpinning Blade On/Start Spring Tension on Idler Off

© 2008Scag Power EquipmentDivision of Metalcraft of Mayville, Inc.

3RSection 2INTRODUCTION2.1 Your mower is only as safe as the operator. Carelessness or operator error may result in serious bodily injury or death. Ha

4RSection 2If the operator(s) or mechanic(s) cannot read English 7. or Spanish, it is the owner's responsibility to explain this material to them

5RSection 2To prevent tipping or loss of control, start and stop 3. smoothly, avoid unnecessary turns and travel at reduced speed.When using any attac