Exmark PNS20KA443 manual

PIONEER S-SERIES For Serial Nos. 920,000 & Higher Part No. 4500-898 Rev . A[...]

W ARNING CALIFORNIA Proposition 65 W ar ning The engine exhaust from this product contains chemicals known to the State of Califor nia to cause cancer , bir th defects, or other reproductiv e har m. Important: The engine in this product is not equipped with a spark ar rester mufer . It is a violation of Califor nia Public Resource Code (CPRC) Se[...]

Introduction CONGRATULATIONS on the purc hase of your Exmark Mo w er . T his product has been carefully designed and man ufactured to gi ve you a maxim um amount of dependability and years of trouble-free operation. This manual contains operating, maintenance, adjustment, and safety instr uctions for your Exmark mow er . BEFORE OPERATING Y OUR MO W[...]

Contents Introduction . .. . . .. . . . .. . . .. . . . .. . . .. . . . .. . . .. . . . .. . . .. . . . .. . . .. . . .. . . . 3 Safety .. . . . .. . . .. . . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . . .. . . .. . . . .. . . .. . . . .. . . .. 5 Safety Aler t Symbol . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . . .. . . .. [...]

Safety Safety Safety Alert Symbol This lawn mow er meets or ex ceeds the B71.4 specications of the American National Standards Institute in effect at the time of production. Exmark designed and tested this lawn mo wer to offer reasonably safe ser vice; howev er , failure to comply with the following instr uctions may result in personal injur y .[...]

Safety • Inspect the area where the equipment is to be used and remov e all rocks , to ys , stic ks , wires , bones , and other foreign objects which can be thrown b y the machine and ma y cause personal injur y to the operator or bystanders . DANGER In cer tain conditions gasoline is extremely ammable and v apors are explosiv e. A re or ex[...]

Safety Operation W ARNING Operating engine par ts, especially the muf er , become extremely hot. Severe bur ns can occur on contact and de bris, such as leav es, grass, br ush, etc. can catch re. • Allow engine par ts, especially the mufer , to cool befor e touching . • Remo ve accumulated de bris from mufer and engine area. • Ins[...]

Safety DANGER Operating on wet grass or steep slopes can cause sliding and loss of control. W heels dropping ov er edges, ditches, steep banks, or w ater can cause rollov ers, which may result in serious injur y , death or drowning . • Do Not mow slopes when grass is w et. • Do Not mow near drop-of fs or near water . • Do Not mow slopes great[...]

Safety spark plug wire. W ait for all mov ement to stop before adjusting, cleaning or repairing . • Keep engine and engine area free from accumulation of g rass , leaves , ex cessi v e g rease or oil, and other debris whic h can accumulate in these areas . These materials can become combustible and ma y result in a re. • Let engine cool befo[...]

Safety W ARNING Hydraulic uid escaping under pressure can penetrate skin and cause injur y . Fluid accidentally injected into the skin must be surgically remov ed within a few hour s by a doctor familiar with this for m of injur y or gangr ene may result. • If equipped, make sure all h ydraulic uid hoses and lines are in good condition and [...]

Safety Safety and Instructional Decals • Keep all safety signs legible. R emo v e all g rease , dirt and debris from safety signs and instructional labels . • R eplace all w orn, damaged, or missing safety signs . • When replacement components are installed, be sure that current safety signs are afxed to the replaced components . • If an[...]

Safety 107-2102 109-3148 109-6014 1 16-1 1 19 1 16-1 121 1. Rotate the drive release knob to loosen, slide the knob, and tighten. 2. Push the machine. 1 16-1496 12[...]

Safety 1 16-3303 1 16-4308 1. Latch 2. Unlatch 1 16-4465 1. Fast 3. Choke-on 2. Slow 4. Choke-off PTO Switch Symbols 1. PTO–disengage 2. PTO–engage 13[...]

Safety 109-6016 1. Read the instructions before servicing or performing maintenance 4. Refer to the Operator ’ s manual for grease instructions 2. T ime interval 5. Check hydraulic oil level and refer to the Operator ’s manual or further instructions 3. Check oil level 6. Check tire pressure 1 16-4430 1. Park brake — engage 4. Neutral 2. Fast[...]

Specications Specications Model Numbers Serial Nos: 920,000 and Higher PNS20KA443; PNS22KA483; PNS24KA523 Systems Engine • Engine Specications: See your Engine Owner’ s Manual • Engine Oil T ype: Exmark 4–Cycle Premium Engine Oil • RPM: Full Speed: 3750 ±50 RPM (PTO not engag ed) Idle: 1500 ±100 RPM Fuel System • Capacity: 7.[...]

Specications ar mrests , integ ral safety switc h, and seat vibration isolation system. Optional seat accessories for units with standard seats: – Custom ride suspension system to enhance Standard Seat. Adds appro ximately 3 inches (7.6 cm) to seat height. – Deluxe suspension seat with high back, (dampened, adjustable spring suspension), ar [...]

Specications Overall Length: 44 inch Deck 48 inch Deck 52 inch Deck R oll Bar - Up 78.8 inches (200.2 cm) 77.8 inches (197.6 cm) 77.8 inches (197.6 cm) R oll Bar - Down 79.6 inches (202.2 cm) 78.6 inches (199.6 cm) 78.6 inches (199.6 cm) Overall Height: Roll Bar - Up Roll Bar - Down 71.3 inches (181.1 cm) 48 inches (121.9 cm) T read W idth: (Cen[...]

Operation Product Overview Figure 4 1. Rollover Protection System (ROPS) 5. Motion control levers 2. Engine controls (right console) 6. Parking brake 3. Seat belt 7. Height of cut adjustment 4. Fuel cap Operation Note: Deter mine the left and right sides of the machine from the nor mal operating position. Controls Motion Control Levers The motion c[...]

Operation position. Do Not r un a warm engine with choke in the “ON” position. Figure 6 1. Throttle lever 4. Blade control switch (power take-of f) 2. Choke lever 5. Ignition switch 3. Hour meter Throttle Control Located on right console (red lev er) (see Figure 6). The throttle is used to control engine speed. Moving the throttle lev er forw a[...]

Operation The fuel shut-off v alve is used to shut off the fuel when the machine will not be used for a few days , during transport to and from the jobsite, and when parked inside a building . Align v alv e handle with the fuel line to open. R otate 90° to close. Drive Wheel Release V alves W ARNING Hands may become entangled in the r otating driv[...]

Operation Deck Lift Pedal Located at the right front corner of the oor pan. Push the pedal forward with your foot to raise the cutting deck. Allow the pedal to mo ve rearw ard to low er the cutting deck to the cut height that has been set. Figure 10 1. T ransport lock handle 3. Height of cut decal 2. Height adjustment pin 4. Deck foot pedal T ra[...]

Operation G014402 1 2 3 4 5 Figure 1 1 1. Roll bar upper hoop 2. Knob in “latched” position 3. Pull knob to unlatch 4. Rotate 90° to hold unlatched 5. Knob in “unlatched” position 5. Make sure the knobs are fully engag ed with the roll bar in the raised position. The upper hoop of the roll bar ma y need to be pushed forward or pulled rearw[...]

Operation The PTO push-pull switch engag es the cutting blades . Be sure that all persons are clear of the mower deck and discharge area before eng aging PTO . Important: Operator must be in seat before the PTO can be enga ged. 1. Set the throttle midwa y between the “SLO W” and “F AST” positions . 2. Pull the PTO switc h outward to engag e[...]

Operation Figure 14 1. Front of Unit 3. Neutral 2. Forward 4. Reverse Driving in Reverse 1. Mov e the motion control levers inward to the neutral operate position. 2. T o mov e rearw ard in a straight line, mov e both levers rearward with equal pressure . T o tur n right, release pressure on the RH motion control lev er and the rear of the mac hine[...]

Operation Figure 16 For cutting heights above 3.5 inches (90 mm) use the bottom hole. The rollers will still be effective against scalping. 1. Anti-scalp roller mounting bracket 2. Cutting height F or Maximum Deck Flotation, place the rollers one hole position low er . R ollers should maintain 1/4 inch (6.4 mm) clearance to the g round. Do Not adju[...]

Operation tipping bac kward. Having a full width ramp provides a surface for the frame members to contact if the unit starts to tip bac kward. If it is not possible to use one full width ramp , use enough indi vidual ramps to simulate a full width continuous ramp . Ramp should be long enough so that the angles between the ramp and the g round and t[...]

Maintenance Maintenance Note: Deter mine the left and right sides of the mac hine from the nor mal operating position. W ARNING While maintenance or adjustments are being made, someone could star t the engine. Accidental starting of the engine could seriousl y injure you or other bystanders. Remo ve the key fr om the ignition s witch, enga ge parki[...]

Maintenance Periodic Maintenance Check Engine Oil Level Service Interval: Before each use or daily 1. Stop engine and w ait for all moving parts to stop . Make sure unit is on a lev el surface . 2. Check with engine cold. 3. Clean area around dipstick. R emo ve dipstick and wipe oil off . R einsert the dipstick according to the engine manufacturer?[...]

Maintenance DANGER J ump starting a weak batter y that is cracked, frozen, has low electrolyte level, or an open/shor ted batter y cell, can cause an explosion r esulting in serious personal injur y . Do Not jump star t a weak batter y if these conditions exist. 2. Make sure the booster is a g ood and fully charged lead acid batter y at 12.6 volts [...]

Maintenance Figure 19 1. Spindle 2. Blade 3. Splined bushing 4. Blade bolt washer assembly — T orque to 50-60 ft-lb (68-81 N-m) Apply lubricant to threads as needed to prevent seizing. Copper-based anti-seize preferable. Grease acceptable substitute. B . Apply lubricant to the threads of the blade bolt as needed to prevent seizing . Copper based [...]

Maintenance Check that both the mounting hardware and the knobs are in good w orking condition. Make sure the knobs are fully eng aged with the R OPS in the raised position. The upper hoop of the roll bar may need to be pushed forward or pulled rearw ard to g et both knobs fully engag ed. Figure 20 1. Engaged 2. Partially engaged — Do Not operate[...]

Maintenance 2. W ait until the unit cools before checking the hy draulic oil. 3. Check expansion tank and if necessar y add Exmark Premium Hydro Oil to the FULL COLD line (see Figure 21). Figure 21 1. Engine 2. Expansion tank Check Tire Pressures Service Interval: Every 50 hours 1. Stop engine, wait for all moving parts to stop , and remov e k ey .[...]

Maintenance 5. Pr y out seals, and inspect bearings for wear or damage and re place if necessar y . 6. P ack the bearings with a NGLI grade #1 multi-purpose g rease . 7. Insert one bearing, one new seal into the wheel. Note: Seals (Exmark P/N 103-0063) m ust be replaced. 8. If the axle assembly has had both spacer n uts remov ed (or brok en loose),[...]

Maintenance Hydro Oil Change Inter v al Exmark Premium Hydro Oil (Preferred) 500 Hours Mobil 1 15W50 250 Hours T or que plugs to 180 in-lb (244 N-m). Continue to add oil until it reaches the FULL COLD line on the expansion reser v oir . Figure 23 1. Oil lter 3. Left rear tire 2. V ent plug 6. Raise the rear of mac hine up and support with jack s[...]

Maintenance Thread Locking Adhesives Thread loc king adhesi ves such as “Loctite 242” or “F el-Pro , Pro-Lock Nut T ype” are used on the following fasteners: • R OPS spring pin housing . • Sheav e and clutc h retaining bolt in the end of engine crankshaft. • Hydro cross member mounting bolts Thread loc king adhesi ves are required for[...]

Maintenance Figure 25 44 Inch Deck 1. Blades side to side 2. Measure here 7. Set anti-scalp rollers to top holes or remo v e completely for this adjustment. 8. Set the height-of-cut lever to the 3 inch (76 mm) position. Place tw o “B” thic k blocks (see Bloc k Height and Rak e T able) under the rear edge of the cutting dec k skir t; one on each[...]

Maintenance blocks (see Block Height and Rake T able in Deck Leveling ) under eac h side of the front edge of the deck, but not under the anti-scalp roller brack ets . 7. Loosen the leveling adjust locking nuts (item 1 Figure 26) on all four corners so that the dec k is sitting securely on all four blocks . Make sure that the slack is removed from [...]

Maintenance • Adjusting the Brake to Engage: Shorten the linkage by turning the yoke clockwise. • Adjusting the Brake to Disengag e: Lengthen the linkag e by turning the yoke counterclockwise . 8. R einstall the clevis pin and hair pin and tighten down the jam n ut. Repeat step 6 and readjust if necessar y . 9. When adjustment is complete , rem[...]

Maintenance with a 1/2 inch wrench allo ws ne tuning adjustments so that the machine does not move in neutral. Any adjustments should be made for neutral positioning only . W ARNING Engine must be r unning and dri v e wheels must be tur ning so adjustments can be perf or med. Contact with moving par ts or hot surfaces may cause per sonal injur y[...]

Maintenance Figure 32 1. Bolt 3. Nut 2. Spring 4. Additional mounting holes Up to ve springs can be secured to the seat bo x with a nut and bolt, see Figure 32. R efer to the Parts Manual for spring and hardware part n umbers . Electric Clutch Adjustment Figure 33 1. Armature 5. Brake spacer 2. Field shell 6. Re-gap shim 3. Rotor 7. Brake pole 4[...]

Maintenance G011733 1 Figure 35 1. Feeler gauge Figure 36 1. Feeler gauge • If the g ap is less than 0.010 inc h, then reinstall the shim and reference the T roubleshooting section. • If the g ap is sufcient, proceed to the safety check in step F. F . P erfor m the following safety check: a. Sit on the seat and star t the engine. b . Mak e s[...]

Maintenance 1. Stop engine, wait for all moving parts to stop , and remov e k ey . Engag e parking brak e . 2. Slide seat all the way forw ard. 3. R emov e accum ulated debris from the h ydro fan cooling ns and upper surfaces . Clean Debris From Machine Service Interval: Before each use or daily 1. Stop engine, wait for all moving parts to stop [...]

T roubleshooting T roubleshooting Important: It is essential that all operator safety mechanisms be connected and in proper operating condition prior to mower use. When a problem occurs , do not ov erlook the simple causes . F or example: starting problems could be caused by an empty fuel tank. The following table lists some of the common causes of[...]

T roubleshooting Problem Possible Cause Cor rectiv e Action 1. Engine load is ex cessiv e 1. Reduce the ground speed. 2. Air cleaner is dir ty . 2. Clean or replace the air cleaner element. 3. Oil level in the crankcase is low . 3. Add oil to the crankcase. 4. Cooling ns and air passages for the engine are plugg ed. 4. Remov e the obstructions f[...]

Schematics Schematics Electrical Diagram 45[...]

Schematics Electrical Logic Schematic 46[...]

General Warranty Conditions and Products Co vered Exmark Mfg. Co. Inc. and its aff iliate, Exmark W arranty Company , pursuant to an agreement between them, jointly warrant on the terms and conditions herein, that we will repair , replace or adjust any part on these products and found by us (in the exercise of our reasonable discretion) to be defec[...]

Notes: 48[...]

Service Record Date: Description of W ork Done: Service Done By: 49[...]

50[...]

G01 1841 Figure 37 This page may be copied for personal use. 1. The maximum slope you can safely operate the machine on is 15 degrees . Use the slope indicator to determine the degree of slope of hills before operating. Do Not operate this machine on a slope greater than 15 degrees. Fold along the appropriate line to match the recommended slope. 2.[...]

MID-MOUNT RIDING A CCESSORIES AND OPTIONS SEE EXMARK’S COMPLETE LINE OF A CCESSORIES AND OPTIONS W ALK-BEHIND A CCESSORIES AND OPTIONS GRASS CA TCHER MICRO-MULCH SYSTEM TURF STRIPER ST ANDON CUST OM RIDE SEA T SUSPENSION SYSTEM FULL SUSPENSION SEA T DECK LIFT ASSIST KIT HITCH KIT LIGHT KIT 12 V PO WER PORT MICRO-MULCH SYSTEM OPERA T OR CONTROLLED[...]