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QUEST ®
For Serial Nos.
790,000 & Higher
Par t No. 4500-450 Rev . A
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W ARNING CALIFORNIA Pr oposition 65 W ar ning T he engine exhaust fr om this pr oduct contains chemicals kno wn to the State of Calif or nia to cause cancer , bir th defects, or other r epr oducti v e har m. Important: T his engine is not equipped with a spar k ar r ester muf fler . It is a violation of Calif or nia Public R esource Code Section 4442 to use or operate the engine on an y f or est-co v er ed, br ush-co v er ed, or g rass-co v er ed land. Other states or federal ar eas may ha v e s
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Introduction R ead this infor mation carefully to lear n ho w to operate and maintain y our product properly and to a v oid injur y and product damag e . Y ou are responsible for operating the product properly and safely . Y ou ma y contact Exmark directly at www .Exmark.com for product and accessor y infor mation or help finding a dealer . W henev er y ou need ser vice , g en uine Exmark par ts , or additional infor mation, contact an A uthorized Ser vice Dealer or Exmark Customer Ser vice and
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Chec king the Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Contents Mo w er Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Ser vicing the Cutting Blades . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Mo w er Belt Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Safety • Allo w only responsible adults who are familiar Safety with the instr uctions to operate the mac hine . • Clear the area of objects suc h as roc ks , to ys , wire , Safety Alert Symbol etc ., whic h could be pic k ed up and thro wn b y the T his man ual identifies potential hazards and has blade . safety messag es identified b y the safety aler t symbol • Be sure the area is clear of other people before ( Figure 2 ), whic h signals a hazard that ma y cause mo wing . Stop the mac hine if
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Safety safely enough to protect themselv es and others Children from serious injur y . T ragic accidents can occur if the operator is not • Alw a ys follo w the recommendations for wheel aler t to the presence of c hildren. Children are often w eights or counterw eights . attracted to the mac hine and the mo wing acti vity . Nev er assume that c hildren will remain where y ou Slope Operation last sa w them. Slopes are a major factor related to loss of control • K ee p c hildren out of the mo win
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Safety • Extinguish all cig arettes , cig ars , pipes and other re place with man ufacturers’ recommended par ts , sources of ignition. when necessar y . • Use only an appro v ed container . • Mo w er blades are shar p and can cut. W rap the blades or w ear glo v es , and use extra caution when • Nev er remo v e the g as cap or add fuel when the ser vicing them. engine is r unning . Allo w the engine to cool before refueling . • Chec k for proper brak e operation frequently . Adjust and ser vice
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Safety Safety and Instructional Decals Safety decals and instr uctions are easily visible to the operator and are located near any area of potential dang er . R e place any decal that is damag ed or lost. 93-7009 1. W arning–Do Not operate 2. Cutting/dismemberment the mower with the hazard of hand or foot, discharge deflector up mower blade–stay away or removed; keep the from moving parts. discharge deflector in place. 109-6008 1. Read the Operator ’ s 3. Push the machine. Manual. 2. Rotate the
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Safety 109-9120 1. Fuse 2. Diode 109-6035 Deck Drive Belt Routing 109-6036 1. Read the Operator ’ s Manual. 109-9173 2. Remove the ignition key and read the instructions before servicing or performing maintenance. 1. Parking brake 4. Neutral 3. Height of cut. 2. Fast 5. Reverse 3. Slow 6. Machine Speed 109-6210 1. Read the Operator ’ s Manual. 2. Cutting/dismemberment hazard, fan and entanglement hazard, belt–stay away from moving parts. 109-9182 1. Machine speed 4. Neutral 109-6459 2. Fast 5. R
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Safety 1 10-6691 1. Thrown objects 3. Cutting/dismemberment hazard–keep bystanders of hand or foot–stay a safe distance from the away from moving parts. machine. 2. Thrown objects hazard, mower–keep the discharge deflector or collection system in place. 1 16-0532 QST20BE422 Unit 1. Choke–on 2. Throttle–fast 3. Continuous variable setting 4. Throttle–slow 1 16-0531 1 16-0533 1 16-0551 1 16-0581 10
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Safety PT O Symbols 1. PT O—Of f 2. PT O—On 109-6016 1. Read the instructions before servicing or performing 4. Refer to the Operator ’ s manual for grease instructions. maintenance. 2. T ime interval 5. Check hydraulic oil level and refer to the Operator ’ s Manual for further instructions. 3. Check oil level. 6. Check tire pressure. 1 1
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Safety 109-8965 1. W arning–read the Operator ’ s Manual. 5. T ipping hazard–avoid sudden and sharp turns while on slopes, only mow across slopes less than 15 degrees, keep a safe distance from water , and only mow up and down slopes less than 15 degrees. 2. Read the instructions before servicing or performing 6. Cutting/dismemberment hazard of hand or foot, mower maintenance; apply parking brake, remove the ignition key blade–stay away from moving parts. and disconnect the spark plug wire. 3. T
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Specifications Specifications Model Numbers Serial Nos: 790,000 and Higher QST20BE422; QST22BE482; QST24BE522 Systems • Operator m ust be in seat when PTO is eng ag ed, brak e is diseng ag ed, or motion control lev ers are mo v ed in or engine will stop . Engine • Engine Specifications: See y our Engine Owner’ s • Engine will stop if either the left, the right, or Man ual both lev ers are mo v ed from neutral loc k position while brak e is eng ag ed. • RPM: – 20HP Operator Controls Full Speed: 3
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Specifications • Ar mrests: Standard–foam padded flip-up • Blade Size: (3 ea.) adjustable height ar mrests (optional on the 42 – 42 inc h Dec k: 21.25 inc hes (53.9 cm) inc h unit). – 48 inc h Dec k: 16.25 inc hes (41.3 cm) • Seat Safety Switc h: Incor porated into the Safety Interloc k System. – 52 inc h Dec k: 18.00 inc hes (45.7 cm) • Blade Spindles: Solid steel spindles with no Hydrostatic Ground Drive System maintenance bearings . • Hy drostatic Pumps: T w o Hy dro Gear ZT2800 • Dec k Dri v
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Product Overview Overall Height: Product Overview All Units 41.8 inc hes (106 cm) T read W idth: (Center to Center of T ires, W idthwise) 42 inch 48 inch 52 inch Deck Deck Deck Dri v e 36.0 inc hes 36.0 inc hes 36.8 inc hes W heels (91 cm) (91 cm) (93 cm) Caster 27.9 inc hes 33.5 inc hes 33.5 inc hes W heels (71 cm) (85 cm) (85 cm) Wheel Base: (Center of Caster T ire to Center of Drive T ire) Figure 3 All Units 1. Front caster wheel 8. Engine 48.9 inc hes (124 cm) 2. Anti-scalp roller 9. Seat 3.
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Operation Blade Control Switch (Power Operation T ake-Off) Located on the control panel. Controls T he blade control switc h, re presented b y a po w er Note: Become familiar with all of the controls in tak e-off (PTO) symbol, eng ag es and diseng ag es Figure 3 and Figure 4 before y ou star t the engine and po w er to the mo w er blades (see Figure 4 ). operate the mac hine . Pull out on the blade control switc h to “On” to Ignition Switch eng ag e the blades . Located on control panel. Push th
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Operation Parking Brake Lever DANGER Located on left side of the console ( Figure 3 ). Mo wing on w et g rass or steep slopes can T he brak e lev er eng ag es a parking brak e on the dri v e cause sliding and loss of contr ol. W heels wheels . dr opping o v er edges can cause r ollo v er s, which may r esult in serious injur y , death Pull the lev er up and rearw ard to eng ag e the brak e . or dr o wning . A loss of traction is a loss of steering contr ol. Push the lev er forw ard and do wn to
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Operation See inside bac k co v er to deter mine the appro ximate DANGER slope angle to be mo w ed. In cer tain conditions during fueling , static electricity can be r eleased causing a spar k Recommended Gasoline which can ignite gasoline v apor s. A fir e or Use UNLEADED R egular Gasoline suitable for explosion fr om gasoline can bur n y ou and other s and cause pr oper ty dama ge. automoti v e use (87 pump octane minim um). • Al w ays place gasoline container s on the Important: Nev er use me
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Operation Using Stabilizer/Conditioner Use a fuel stabilizer/conditioner in the mac hine to pro vide the follo wing benefits: • K ee ps g asoline fresh during storag e of 30 da ys or less . F or long er storag e it is recommended that the fuel tank be drained. • Cleans the engine while it r uns . • Eliminates gum-lik e v ar nish buildup in the fuel system, whic h causes hard star ting Add the cor rect amount of g as stabilizer/conditioner to the g as . Note: A fuel stabilizer/conditioner is most
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Operation 2. Mo v e the throttle midw a y to the F ast position. Note: Alw a ys eng ag e the blades with the throttle in the midw a y position. 3. Pull out on the blade control switc h, to the On position, to eng ag e the blades (Figure 8 ). Figure 7 1. Throttle/Choke lever 5. Run 2. Blade control 6. Start switch—Of f position 3. Ignition key 7. Choke 4. Of f 8. Throttle–fast (detent Figure 8 position) 1. Throttle–Midway 2. Blade control position switch—On position 3. Mo v e the lev er forw ard,
