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SvR36A-600FX with a serial number of H3700001 to H3799999 SvR48v-691FX with a serial number of H3800001 to H3899999 SvR52v-730FX with a serial number of H3900001 to H3999999 SvR61v-801FX with a serial number of H4000041 to H4099999 Always use the entire serial number listed on the serial number tag when referring to this product.
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 SECTION 6 - ADJUSTMENTS ....................21 6.1 PARkING BRAkE ADJUSTMENT ......................21 6.2 TRAvEL ADJUSTMENT ..........................21 6.3 THROTTLE CONTROL AND CHOkE ADJUSTMENTS ................23 6.4 BELT ADJUSTMENTS ..........................23 6.5 BELT ALIGNMENT .............................23 6.6 CUTTER DECk ADJUSTMENTS ......................23 6.7 ELECTRIC CLUTCH ADJUSTMENT ......................28 6.8 FRONT WEIGHT ADJUSTMENT ......................28 6.9 OPERATOR CUSHION ADJUSTMENT .....................29 SECTION 7 -...
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 The signal word “DANGER” denotes that an extremely or death. Hazard control and accident prevention are hazardous situation exists on or near the machine that dependent upon the awareness, concern, prudence, and could result in high probability of death or irreparable injury...
Section 2 DO NOT allow children to ride or play on the Be sure the interlock switches are functioning machine, it is not a toy. correctly. Clear the area to be mowed of objects that could be Fuel is flammable; handle it with care. Fill the fuel picked up and thrown by the cutter blades.
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Section 2 Immediately apply the parking brake if you lose steering control while operating. Inspect the machine and correct the problem before continuing to operate. When using any attachment, never direct the discharge of material toward bystanders or allow anyone near the machine while in operation. Start the engine with the operator in the operating position, cutter blades are disengaged, parking brake is engaged, and the neutral lever is in neutral.
Section 2 Tie the mower down securely using the tie down Do not change the engine governor settings or points located on the front and rear of the machine. overspeed the engine. See the engine operator's See Figure 2-2 and 2-3. Secure using straps, chains, manual for information on engine settings.
Section 2 USING A SPARk ARRESTOR The engine in this machine is not equipped with a spark arrestor muffler. It is in violation of California Public Resource Code Section 4442 to use or operate this engine on or near any forest covered, brush covered or grass covered land unless the exhaust system is equipped with a spark arrestor meeting any applicable local or state laws.
Section 2 SAFETY AND INSTRUCTIONAL DECALS 483402 483407 Avoid injury from burns - Shut off engine - Allow to cool several minutes - Remove cap slowly - Do not over fill 484281 483406 Avoid injury from burns - Shut off engine - Allow to cool several minutes - Remove cap slowly - Do not over fill...
Section 3 CUTTER DECk Type ........................Out-Front design with anti-scalp rollers Construction ..........................Tri-plate deck construction Top of deck consists of three steel plates totaling nearly 1/2" of steel, 7-gauge (3/16") deck skirt True Cutting Width: 36 .................................35.5" (90.2 cm) 48 ................................48" (122.0 cm) 52 ................................52"...
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 Left Steering Control / Operator Presence WARNING Control (Figure 4-1). Used to control the mower's left wheel when traveling forward or reverse. See Section 4.5 for further details regarding the mower's Never operate the mower with the interlock travel controls.
Section 4 - NOTE - Turn the ignition key to the start position and start the engine. Smooth operation of the steering control levers will produce smooth mower operation. While learning Allow engine to warm before operating the mower. the operation of the steering controls, keep the travel speed low.
Section 4 ENGAGING THE DECk DRIvE (CUTTER PUSH FOR PULL BACK NEUTRAL BLADES) FORWARD FOR REVERSE “N” FOR NEUTRAL LOCK “D” FOR DRIVE Set the throttle at about 3/4 speed. Do not attempt to engage the deck drive at high speed as this shortens the electric clutch life —...
Section 4 Operating the machine with the platform lowered is To disengage the deck drive, push the switch in to the disengage position. recommended when: Always operate the engine at full throttle to properly • Mowing most areas. maintain cutting speed. If the engine starts to lug •...
Section 4 HILLSIDE OPERATION 4.10 AFTER OPERATION Wash the entire mower after each use. Do not WARNING use high pressure spray or direct the spray onto electrical components. DO NOT operate on steep slopes. Under no - IMPORTANT - circumstances should the machine be operated Do not wash a hot or running engine.
Section 4 4.12 MOvING MOWER WITH ENGINE Use the alternate stripe pattern for best lawn appearance. Vary the direction of the stripe each STOPPED time the grass is mowed to avoid wear patterns in the grass. To “free-wheel” or move the mower around without the engine running, place the dump valve levers in the FREE- 4.14 ADJUSTING CUTTING HEIGHT...
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 ADJUST LINKAGE FOR 1/4” GAP WARNING DO NOT operate the mower if the parking brake is not operable. Possible severe injury could result. The parking brake linkage should be adjusted whenever 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 NEUTRAL ADJUSTMENT LOOSEN JAM NUT -NOTE- Neutral has been set by your Scag dealer at the time of set up and normally does not need to be adjusted. If, however, you find that the neutral has come out of adjustment, follow the procedure below.
Section 6 -NOTE- THROTTLE CONTROL AND CHOkE ADJUSTMENTS Before proceeding with this adjustment, be sure that the caster wheels turn freely and that the tire pressure in the drive wheels is correct. If the tire These adjustments must be performed by your Scag dealer pressure is not correct, the machine will pull to the to ensure proper and efficient running of the engine.
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Section 6 Turn the adjustment bolts on the front and rear CUTTER DECk LEvEL cutter deck adjustment levers clockwise to raise or counter-clockwise to lower the RH side until the The cutter deck should be level from side-to-side for proper distance from the top of the cutter deck to the floor is cutting performance.
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Section 6 CUTTER DECK ADJUSTMENT BOLT DECK HEIGHT CONTROL ROD LOOSEN HERE Figure 6-6. Cutter Deck Height Adjustment Rotate the cutter blade on the left side of the cutter deck. Position the cutter blade so it is facing "front to CUTTER DECK ADJUSTMENT back"...
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Section 6 Rotate the cutter blade on the right side of the cutter To adjust the Custom-Cut Baffle height: deck. Position the cutter blade so it is facing "front to Park the machine on a flat surface, apply the parking back"...
Section 6 ELECTRIC CLUTCH ADJUSTMENT ADJUSTMENT NUTS The electric clutch serves two functions in the operation of the mower. In addition to starting and stopping the power flow to the cutter blades, the clutch also acts as a brake to assist in stopping blade rotation when the PTO is switched off or the operator presence circuit is interrupted.
Section 6 Additional weight can be added to the front of the machine if needed. See Figure 6-11. Remove the front belt cover from the machine. Remove the mounting hardware securing the weight(s) to the front of the machine. Add the desired weight to the machine and secure using the recommended hardware.
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Section 6 OPERATOR CUSHION ADJUSTMENTS THREE OPERATOR CUSHION LOCATIONS ONE MOUNTING BRACKET LOCATION Figure 6-12. Operator Cushion Adjustment...
Section 7 HYDRAULIC SYSTEM B. CHANGING HYDRAULIC OIL The hydraulic oil should be changed after every 500 hours A. CHECkING HYDRAULIC OIL LEvEL or annually, whichever occurs first. The oil should also be changed if the color of the fluid has become black or milky. The hydraulic oil level should be checked after the first 8 A black color and/or a rancid odor usually indicates possible hours of operation.
Section 7 B. CHANGING ENGINE CRANkCASE OIL After the first 20 hours of operation, change the engine crankcase oil and replace the oil filter. Thereafter, change the engine crankcase oil after every 100 hours of operation or monthly, whichever occurs first. Refer to the Engine Operator’s Manual furnished with this mower for instructions.
Section 7 ENGINE FUEL SYSTEM To avoid personal injury or property damage, use extreme care in handling gasoline. Gasoline is extremely flammable and the vapors are explosive. DANGER Extinguish all cigarettes, cigars, pipes and other sources of ignition. Use only an approved gasoline container. To avoid injury from burns, allow the mower to cool before removing the fuel tank cap and Never remove the gas cap or add fuel with the...
Section 7 BATTERY - ELECTRIC START MODELS WARNING Lead-acid batteries produce flammable and explosive gases. To avoid personal injury when checking, testing or charging batteries, DO NOT use smoking materials near batteries. keep arcs, sparks and flames away from batteries. Provide proper ventilation and wear safety glasses.
Section 7 - NOTE - A. CHARGING THE BATTERY If you experience frequent belt wear or breakage, see your authorized Scag service center for belt Refer to the battery charger’s manual for specific adjustment. instructions. Under normal conditions the engine’s alternator will have WARNING no problem keeping a charge on the battery.
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Section 7 - NOTE - Raise the mower deck to the highest position. Place the lanyard pin in the highest cutting height position Keep the blades sharp. Cutting with dull blades not to prevent the cutter deck from falling. only yields a poor mowing job, but slows the cutting speed of the mower and causes extra wear on the Secure the cutter blades to prevent them from engine and the blade drive by pulling hard.
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: • Mulch Plate (p/n 9258, 9286, 9287, 9288) •...
Section 8 SvR ELECTRICAL SCHEMATIC SWITCH YEL W/RED STRIPE HOURMETER BLACK YEL W/RED STRIPE WHITE SWITCH GREEN BLUE NEUTRAL INTERLOCK SWITCH GREEN BLACK W/RED STRIPE 20 AMP FUSE YELLOW YELLOW 20 AMP FUSE RED W/WHITE STRIPE GREEN BLACK BLACK OPERATOR BLACK PRESENCE BLACK W/RED STRIPE...
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.