Scag Power Equipment STT-31BSG manual Part Description

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		CUTTER DECK CONTROLS
Ref.	Part
No.	No.	Description

1	481428	Grip, Deck Latch
2	46975	Deck Latch (Includes items 20& 21)
3	04009-02	Bolt, Shoulder 1/2 x 3/4"
4	04012-09	Set Screw, 5/16-18 x 1/2" Sq. Head
5	422346	Lockplate, Decklift
6	481766	Rod End, Female - 1/2-20 LH
7	04050-10	Ring, Retaining 1/2" External "E"
8	43487	Pin, Decklift
9	481764	Link, Decklift
10	04020-28	Nut, Jam 1/2-20 LH
11	04020-27	Nut, Jam 1/2-20 RH
12	04001-74	Bolt, Hex Head 1/2-13 x 3"
13	481765	Rod End, Female - 1/2-20 RH
14	43391	Spacer, Decklift Pedal
15	45905	Bellcrank Weldment, RH Rear
16	48100-08	Bushing, 1.003 ID.
17	04001-91	Bolt, Hex Head 7/16-14 x 2-1/2"
18	04021-11	Nut, Hex Elastic Stop 7/16-14
19	45945	Footplate Weldment, Decklift
20	04003-04	Bolt, Carriage 5/16-18 x 1"
21	422451	Footplate, Height Adjustment
22	04063-01	Key, 1/4 x 1/4 x 1-1/4"
23	04063-23	Key, 1/4 x 1/4 x 3-1/4"
24	04019-04	Nut, 3/8-16 Hex, Serrated Flange
25	04041-14	Flatwasher, 1" (1.062 x 1.50 x .048)
26	04050-08	Ring, Retaining 1" External "E"
27	45906	Bellcrank Weldment, LH Front
28	48114-04	Grease Fitting
29	04020-09	Nut, Hex 5/8-11
30	43473	Swivel Joint, RH
31	04040-09	Flatwasher, 5/8” (.656 x 1.312 x .095)
32	04004-33	Stud, 5/8-11 x 22.0"
33	481549	Spring, Deck Lift
34	422439	Flatwasher, Spring Stop
35	48540	Chain
36	04001-20	Bolt, Hex Head 3/8-16 x 1-1/2"
37	04040-09	Flatwasher, 5/8" (.656 x 1.312 x .095)
38	04020-09	Nut, Hex 5/8-11
39	04061-07	Pin, Cotter 3/16 x 1.0”
40	04041-07	Flatwasher, 3/8”
41	04021-09	Nut, 3/8-16 Elastic Stop
42	45904	Bellcrank Weldment, LH Rear
43	43472	Swivel Joint, LH
44	04067-05	Ring Pin, 1/2 x 3.30"
45	481547	Lanyard, Deck Height Pin
46	422403	Bracket, Cutting Height Adjustment
47	422381	Guide, Short
48	422346	Lockplate, Decklift
49	04014-03	Screw, Cap 5/16-18 x 3" FHHS
50	422380	Guide, Long
51	45907	Bellcrank Weldment, RH Front
52	04021-05	Lock Nut, Hex Head 3/8-16

* Common hardware which should be purchased locally. All bolts Grade 5 plated, all other fasteners zinc plated.

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Contents OPERATOR’S Manual Remember Your Mower is only AS Safe AS the Operator Table of Contents Table of Contents Contd Servicing the Engine and Drive Train Components General InformationIntroduction Direction ReferenceISO Symbols Fast Slow Signal Words Safety InformationBefore Operation Considerations Operation Considerations Before Operation Considerations ContdOperation Considerations Contd Maintenance ConsiderationsForward Reverse Engine Deck EngineDrive System Specifications Controls and Instrument Identification Operating InstructionsSafety Interlock System Ground Travel and Steering Starting the EngineForward Travel Engaging the Deck Drive Cutter Blades Reverse TravelParking the Mower Hillside OperationAfter Operation Moving Mower with Engine Stopped Removing Clogged MaterialRecommendations for Mowing Deck Release Lever Adjusting Cutting HeightCondition Cause Cure Troubleshooting Cutting ConditionsScalloped Cut, or Rough Contour Troubleshooting Contd Condition Cause CureGround Troubleshooting ContdParking Brake Adjustment AdjustmentsTravel Adjustments RH Steering Control Rod Adjustment Neutral AdjustmentBelt Alignment Tracking AdjustmentThrottle Control and Choke Adjustments Belt AdjustmentCutter Deck Level Cutter Deck AdjustmentsCutter Deck Pitch Cutter Deck Height Cutter Deck Height AdjustmentMaintenance Chart Recommended Service Intervals MaintenanceLubrication Grease Fitting Lubrication Chart see Figure Maintenance Chart Recommended Service Intervals ContdLubrication Fitting Points Checking Hydraulic Oil Level Hydraulic SystemChanging Hydraulic Oil Changing Engine Crankcase Oil Engine OILChanging Hydraulic Oil Filter Element Checking Engine Crankcase Oil LevelBattery Engine AIR CleanerEngine Fuel System Battery Electrolyte First AID Charging the BatteryCutter Blades Jump StartingDrive Belts Blade SharpeningTires Blade ReplacementChecking Coolant Level Cutter Deck GearboxChecking Lubricant Level Cooling SystemChecking The Fan Belt Tension Cleaning the Radiator Debris ScreenBODY, DECK, and Upholstery 61A, 72A Cutter Decks Ref. Part Description Cutter Deck Controls Part Description Sheet Metal Components Ref. Part No. No Description Deck Drive Components Ref. Part Description RADIATOR, Coolers & Engine Brackets Ref. Part No. No. Description Brake and Steering Components Ref. Part Description Fuel and Hydraulic System Elbow, 90 Degree-1/4 NPT x 3/8 Hose Electrical System Ref. Part No. No. Description Hydraulic Pump Assembly BDP-21L Housing Kit Includes Housing, Journal Bearing Wire HARNESS, STT 31BSG Part Number Heavy-Duty 481588 481937 Limited Warranty Commercial Equipment 2000

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