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WARNING FAILURE TO FOLLOW SAFE OPERATING PRACTICES MAY RESULT IN SERIOUS INJURY OR DEATH. • Read this manual completely as well as other manuals that came with your mower. • DO NOT operate on steep slopes. To check a slope, attempt to back up it (with the cutter deck down).
Table of Contents Table of Contents SECTION 1 - GENERAL INFORMATION ...................1 1.1 INTRODUCTION ............................1 1.2 DIRECTION REFERENCE ...........................1 1.3 SERvICING THE ENGINE AND DRIvE TRAIN COMPONENTS ..............1 1.4 SYMBOLS ..............................2 SECTION 2 - SAFETY INFORMATION ..................3 2.1 INTRODUCTION ............................3 2.2 SIGNAL WORDS ............................3 2.3 BEFORE OPERATION CONSIDERATIONS ....................3 2.4 OPERATION CONSIDERATIONS ........................4...
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Table of Contents 4.17 ADJUSTING THE OPERATOR SUSPENSION PLATFORM ..............20 4.18 TOWING (OPTIONAL HITCH ACCESSORY)...................20 SECTION 5 - TROUBLESHOOTING CUTTING CONDITIONS ..........21 SECTION 6 - ADJUSTMENTS ....................24 6.1 PARkING BRAkE ADJUSTMENT ......................24 6.2 TRAvEL ADJUSTMENTS ..........................24 6.3 LOW / HIGH SPEED ADJUSTMENT ......................26 6.4 THROTTLE CONTROL AND CHOkE ADJUSTMENTS ................26 6.5 BELT ADJUSTMENT ..........................26 6.6 BELT ALIGNMENT .............................26...
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Table of Contents zT-5400 TRANSAXLE ASSEMBLY ........................64 SCz ELECTRICAL SYSTEM ...........................66 REPLACEMENT DECALS AND INFORMATION PLATES ................68 SCz ELECTRICAL SCHEMATIC ........................70 LIMITED WARRANTY - COMMERCIAL EqUIPMENT ......Inside Back Cover...
Scag service parts. All information is based upon product information available - IMPORTANT - at the time of approval for printing. Scag Power Equipment The replacement of any part on this product reserves the right to make changes at any time without by other than the manufacturer's authorized notice and without incurring any obligation.
Section 1 SYMBOLS SYMBOL DESCRIPTION SYMBOL DESCRIPTION Choke Transmission Parking Brake Spinning Blade 48071S On/Start Spring Tension on Idler Off/Stop Falling Hazard Thrown Object Hazard Fast Slow Continuously Variable - Linear Cutting Element - Basic Symbol Pinch Point Cutting Element - Engage 481039S Hour meter/Elapsed Operating Hours Cutting Element - Disengage...
Section 2 SAFETY INFORMATION INTRODUCTION DANGER Your mower is only as safe as the operator. Carelessness or operator error may result in serious bodily injury or death. Hazard control and accident prevention are The signal word “DANGER” denotes that an extremely dependent upon the awareness, concern, prudence, and hazardous situation exists on or near the machine that proper training of the personnel involved in the operation,...
Section 2 If the operator(s) or mechanic(s) cannot read English DO NOT add fuel to a running or hot engine. Allow or Spanish, it is the owner's responsibility to explain the engine to cool for several minutes before adding this material to them. fuel.
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Section 2 To prevent tipping or loss of control, start and stop The machine and attachments should be stopped smoothly, avoid unnecessary turns and travel at and inspected for damage after striking a foreign reduced speed. object, and damage should be repaired before restarting and operating the machine.
Section 2 ROLL-OvER PROTECTION SYSTEM Any or all parts of the Roll-Over Protection System MUST NOT be removed. Failure to adhere to this guideline could result in injury or death. WARNING FOLDABLE ROLL-OvER PROTECTION SYSTEM Reduce speed when turning, operating on slopes, WARNING slick or wet surfaces.
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Section 2 Remove the hairpin cotter pins and remove the two The potential exposure of the seat belt to severe (2) lock pins. See Figure 2-1. environmental conditions makes it crucial to inspect the seat belt system regularly. Lower the roll bar to the folded position and close the rear cover.
Section 2 MAINTENANCE CONSIDERATIONS & WARNING STORAGE Never make adjustments to the machine with the Hydraulic fluid is under high pressure. keep body engine running unless specifically instructed to do and hands away from pinholes or nozzles that so. If the engine is running, keep hands, feet, and eject hydraulic fluid under high pressure.
Section 2 SAFETY AND INSTRUCTIONAL DECALS FORWARD REvERSE 482100 483407 483407 483406 483425 482291 483300 482291 483444 WARNING 484180 INSTALL BELT COvER BEFORE OPERATING MACHINE WARNING READ OPERATOR'S MANUAL 483402 Operation of this equipment may create sparks that can 483402 start res around dry vegetation.
Section 3 POWER HEAD Drive System ............Hydraulic Drive with Two Hydro-Gear™ Integrated Zero-Turn Axles Scag Model (SCZ) ........................Hydro-Gear™ ZT-5400 Steering/Travel Control ................... Twin Lever Fingertip Steering Control with Individual Control to Each Wheel with Gas Spring Dampers Parking Brake ..............Lever Actuated Linkage to Brakes on Both Drive Wheel Axles Wheels: (2) Front Caster - (61"...
Section 4 OPERATING INSTRUCTIONS Mower Deck Switch (Figure 4-1). Used to engage CAUTION and disengage the mower drive system. Pulling up on the switch will engage the deck drive. Pushing down on the switch will disengage the deck drive. Do not attempt to operate this mower unless you Engine Choke Control (Figure 4-1).
Section 4 Hourmeter (Figure 4-1). Deck Release Lever (Figure 4-1). Indicates the number of Used to lock the cutter deck in the transport position. Push the foot hours the engine has been operated. It only operates when the engine is running. Has preset maintenance pedal forward and pull back on the release lever to reminders for engine and hydraulic system oil release the cutter deck for normal mowing.
Section 4 INITIAL RUN-IN PROCEDURES Allow engine to warm before operating the mower. GROUND TRAvEL AND STEERING FIRST DAY OF USE OR APPROXIMATELY 20 HOURS Check all belts for proper alignment and wear at 2, 4 - IMPORTANT - and 8 hours. If you are not familiar with the operation of a machine with lever steering and/or hydrostatic Change the engine oil and oil filter after the first 20...
Section 4 - IMPORTANT - ENGAGING THE DECk DRIvE (CUTTER BLADES) Do not travel forward over a curb. The mower will hang up on the curb. Raise the deck and travel Set the throttle at about 3/4 speed. Do not attempt to backwards over the curb at a 45 degree angle.
Section 4 HILLSIDE OPERATION AFTER OPERATION Wash the entire mower after each use. Do not WARNING use high pressure spray or direct the spray onto electrical components. - IMPORTANT - DO NOT operate on steep slopes. To check a slope, attempt to back up it (with the cutter deck down).
Section 4 4.11 MOvING MOWER WITH ENGINE For best overall cut performance, it is recommended to set the speed control lever in LOW while mowing. STOPPED See Section 4.16. When mowing wet or tall grass, mow the grass twice. To “free-wheel” or move the mower around without the Set the speed control lever to LOW.
Section 4 4.15 ADJUSTING THE STEERING LEvERS Insert the lanyard pin into the cutting height index at the desired cutting height. Push forward on the deck lift foot lever, hold in place and pull back on the deck Position the seat to the desired location. release lever.
Section 4 4.16 SETTING THE SPEED CONTROL The speed control lever can be set in either LOW or HIGH range. Moving the speed control lever between LOW and HIGH range sets the maximum forward/reverse speed the machine can obtain during operation. See Figure 4-9. Speed Control Selection Recommendations LOW Range (Forward Travel Speed = 0 to 12 mph ) - SUSPENSION CONTROL...
Section 5 TROUBLESHOOTING CUTTING CONDITIONS CONDITION CAUSE CURE STRINGERS - OCCASIONAL Low engine RPM Run engine at full 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 blades, incorrect sharpening Sharpen blades Deck plugged, grass accumulation...
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Section 5 TROUBLESHOOTING CUTTING CONDITIONS (CONT'D) CONDITION CAUSE CURE U N E v E N C U T O N F L AT Lift worn from blade Replace blade GROUND - WAvY HIGH-LOW APPEARANCE, SCALLOPED Blade upside down Mount with cutting edge toward ground CUT, OR ROUGH CONTOUR Deck plugged, grass accumulation Clean underside of deck...
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Section 5 TROUBLESHOOTING CUTTING CONDITIONS (CONT'D) CONDITION CAUSE CURE SCALPING - BLADES HITTING Low tire pressures Check and adjust pressures DIRT OR CUTTING vERY CLOSE TO THE GROUND Ground speed too fast Slow speed to adjust for conditions May need to reduce ground speed, raise Cutting too low cutting height, change direction of cut, and/or change pitch and level...
Section 6 ADJUSTMENTS PARkING BRAkE ADJUSTMENT WARNING Do not operate the mower if the parking brake is not operable. Possible severe injury could 1/8” result. The parking brake linkage should be adjusted whenever ADJUSTMENT NUT the parking brake lever is placed in the “ENGAGE” position and the parking brake will allow the mower to move.
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Section 6 CAUTION STEERING HANDLE IN NEUTRAL SLOT The engine and drive unit can get hot during operation causing burn injuries. Allow engine and drive components to cool before making any adjustments. - NOTe - ADJUST HERE STEERING CABLE Before proceeding with this adjustment, be sure that the caster wheels turn plus pivot freely and that the tire pressure in the drive wheels is correct.
Section 6 TRACKING ADJUSTMENT BOLT LOOSEN JAM NUT REMOVE COTTER PIN Figure 6-4. Speed Control Adjustment THROTTLE CONTROL AND CHOkE Figure 6-3. Tracking Adjustment ADJUSTMENTS LOW / HIGH SPEED ADJUSTMENT These adjustments must be performed by your Scag The LOW / HIGH speed linkage should be adjusted dealer to ensure proper and efficient running of the whenever the lever will not allow the mower to change engine.
Section 6 CUTTER DECk ADJUSTMENTS CUTTER DECk PITCH The pitch of the cutter deck should be equal between Cutter deck level, pitch and height are set at the factory. the front and rear of the cutter deck for proper cutting However, if these adjustments should ever need to be performance.
Section 6 CUTTER DECk HEIGHT Check the measurement from the floor to the cutter blade tip. If the measurement is not at 3", an adjustment can be made using the deck height The cutter deck height adjustment is made to ensure control rod.
Section 6 ADJUSTING THE STEERING DAMPNERS adjusting bolt. See Figure 6-11. INSPECTION WINDOW (x3) The steering dampner adjustment can be made to increase or decrease the dampening affect for smooth, precise steering control. There are three locations on the steering control levers that allow the operator to adjust the dampening affect of the steering control based on cutting conditions.
Section 7 MAINTENANCE MAINTENANCE CHART - RECOMMENDED SERvICE INTERvALS HOURS PROCEDURE COMMENTS BREAk-IN 100 200 500 (FIRST 10) Check all hardware for tightness Check hydraulic oil level See paragraph 7.3 C h e c k a l l b e l t s f o r p r o p e r See paragraph 7.8 alignment Change engine oil and filter...
Section 7 HYDRAULIC SYSTEM - IMPORTANT - The hydraulic oil should be changed if you notice the presence of water or a rancid odor to the A. CHECkING HYDRAULIC OIL LEvEL hydraulic oil. The hydraulic oil level should be checked after the first 10 Park the mower on a level surface and stop the hours of operation.
Section 7 Place the container (capable of holding 6 quarts) Start the engine and operate the steering control under the LH hydraulic axle assembly. Remove the levers forward and backward for two minutes to drain plug from the bottom of the LH hydraulic axle purge the air out of the hydraulic system.
Section 7 ENGINE FUEL SYSTEM B. REPLACING IN-LINE FUEL FILTER ELEMENTS DANGER The engine fuel filter should be replaced after every 500 hours of operation or annually, whichever occurs first. See Figure 7-6. To avoid injury from burns, allow the mower Close the shut-off valve.
Section 7 Remove the air cleaner and inspect. WARNING Clean or replace the air cleaner and foam pre-cleaner as recommended by the engine manufacturer. Electric storage battery fluid contains sulfuric Replace the air cleaner cover and be sure to snap acid which is POISON and can cause SEvERE the two latches closed.
Section 7 WARNING WARNING Always wear proper hand and eye protection when BATTERIES PRODUCE EXPLOSIvE GASES. working with cutter blades. Charge the battery in a well ventilated space so gases produced while charging can dissipate. Check the cutter blades for straightness. If the cutter blades appear bent, they will need to be replaced.
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Section 7 Angle Blade Back HEX NUT-TORQUE TO 75 LB-FT Do Not Cut In X Must NOT Exceed SPINDLE 1/3 Blade Width SHAFT CUTTER SGB033 DECK Figure 7-8. Blade Sharpening Check the balance of the blade. If the blades are out of balance, vibration and premature wear can occur.
Section 7 7.10 TIRES Check the tire pressures after every 8 hours of operation or daily. Caster Wheels Flat Free Drive Wheels 12 PSI 7.11 BODY, DECk, AND UPHOLSTERY CAUTION Do not wash any portion of the equipment while it is hot.
Section 8 ILLUSTRATED PARTS LIST SCAG APPROvED ATTACHMENTS AND ACCESSORIES Attachments and accessories manufactured by companies other than Scag Power Equipment are not approved for use on this machine. Scag approved attachments and accessories: • GC-STT/SCZ-61V (p/n 9076) - Requires GC-SCZ/28CAT-61V Install Kit (p/n 9079) •...
Section 8 SCz STEERING COMPONENTS 12 17 To Transaxle...
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Section 8 SCz STEERING COMPONENTS Ref. Part No. Description 461914 Handle Bar w/Grip, LH 461923 Handle Bar w/Grip, RH 482340 Grip, Control Handle 04030-03 Lockwasher, 5/16-” Spring 04001-09 Bolt, Hex Head 5/16-18 x 1’ 483238 Pivot, Control Lever 483269 Knob, Control Handle 483250 Spacer, Rubber 04003-05...
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Section 8 SCz DRIvE SYSTEM COMPONENTS Ref. Part No. Description 04003-21 Bolt, Carriage 3/8-16 x 2-1/2” 04001-54 Bolt, Hex Head 3/8-16 x 3” 04001-19 Bolt, Hex Head 3/8-16 x 1” 04019-04 Nut, Serrated Flange 3/8-16 425385 Mounting Bracket, Spring - Idler Arm 04001-136 Bolt, Hex Head 3/8-16 x 1-1/2”...
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Section 8 SCz SPEED CONTROL COMPONENTS Ref. Part No. Description 484093 Knob, Soft Touch 04020-12 Nut, Jam 3/8-16 UNC 452142 Lever Weldment, Speed Control SCZ 04009-11 Bolt, Shoulder 3/8 x 1” 04040-05 Flatwasher, 3/8-.406 x .812 x .065 483601 Spring, Speed Control 04009-14 Bolt, Shoulder 3/8 x 3/8”...
Section 8 REPLACEMENT DECALS AND INFORMATION PLATES MANUFACTURED UNDER ONE OR MORE OF THE FOLLOWING PATENTS: 4,487,006 4,885,903 4,920,733 4,967,543 4,991,382 4,998,948 5,042,239 5,117,617 5,133,176 5,826,416 5,832,708 5,865,018 6,192,666 6,766,633 6,892,519 6,996,962 7,065,946 7,197,863 7,237,374 7,373,768 PATENTS PENDING FORWARD REvERSE WARNING INSTALL BELT COvER BEFORE OPERATING MACHINE...
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Section 8 REPLACEMENT DECALS AND INFORMATION PLATES Ref. Part No. Description 483407 Decal, Spinning Blades 483406 Decal, Knives 483201 Decal, 61” Velocity Plus 483693 Decal, 72” Velocity Plus 483633 Decal, Seat Replacement 483044 Decal, Patents 482100 Decal, Traction Control 483405 Decal, Warning 48404 Decal, Made in USA...
Cutter decks are warranted against cracking for a period of three (3) years. (parts and labor 1st and 2nd year; parts only 3rd year.) The repair or replacement of the cutter deck will be at the option of Scag Power Equipment. We reserve the right to request compo- nents for evaluation.
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