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METRO ® 21
For Serial Nos.
790,000 & Higher
Par t No. 4500-400 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: W hen the mo w er is used or operated on an y Calif or nia f or est, br ush or g rass co v er ed land, a w or king spar k ar r ester must be attached to the muf fler . If not, the operator is violating state la w , Section 4442 Public R esource Code. T o acquir e a spar k ar r est
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Introduction CONGRATULATIONS on the purc hase of y our Exmark Mo w er . T his product has been carefully designed and man ufactured to gi v e y ou a maxim um amount of de pendability and years of trouble-free operation. T his man ual contains operating, maintenance , adjustment, and safety instr uctions for y our Exmark mo w er . Figure 1 1. Model and serial number location BEFORE OPERATING Y OUR MO WER, CAREFULL Y READ THIS MANU AL IN ITS ENTIRETY . By follo wing the operating, maintenance , an
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Emptying the Fuel T ank and Cleaning Contents the Fuel Filter (K a w asaki Units Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 W aste Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Safety . . . . . . . . . . . . . . . . . . . . . . .
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Safety Safe Operating Practices Safety T raining Safety Alert Symbol • R ead the Operator’ s Man ual and other training T his la wn mo w er meets or ex ceeds the CPSC blade material. If the operator(s) or mec hanic(s) can safety requirements for w alk-behind rotar y mo w ers not read English it is the o wner’ s responsibility to and the B71.4 specifications of the American National explain this material to them. Standards Institute in effect at the time of production • Become familiar with the s
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Safety DANGER DANGER In cer tain conditions gasoline is extr emel y In cer tain conditions during fueling , static flamma ble and v apor s ar e explosi v e. electricity can be r eleased causing a spar k which can ignite gasoline v apor s. A fir e or A fir e or explosion fr om gasoline can bur n explosion fr om gasoline can bur n y ou and y ou, other s, and cause pr oper ty dama ge. other s and cause pr oper ty dama ge. • Fill the fuel tank outdoor s in an open • Al w ays place gasoline container
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Safety Operation • Nev er attempt to mak e wheel height adjustments while the engine is r unning . • Stop engine , w ait for all mo ving par ts to stop , W ARNING remo v e the spark plug wire(s) and/or remo v e k ey . Operating engine par ts, especiall y the – Before c hec king, cleaning or w orking on the muf fler , become extr emel y hot. Sev er e bur ns mo w er . can occur on contact and de bris, such as – After striking a foreign object or abnor mal lea v es, g rass, br ush, etc . can catch
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Safety • Be a w are of the mo w er disc harg e path and direct Maintenance and Storage disc harg e a w a y from others . • Stop the engine and remo v e the spark plug wire(s) • Do Not operate the mo w er under the influence and/or remo v e k ey . W ait for all mo v ement to of alcohol or dr ugs . stop before adjusting, cleaning or re pairing . • Use extreme care when loading or unloading the • K ee p engine and engine area free from mac hine into a trailer or tr uc k. accum ulation of g rass , l
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Safety Safety and Instructional Decals • K ee p all safety signs legible . R emo v e all g rease , • New safety signs ma y be obtained from dir t and debris from safety signs and instr uctional y our authorized Exmark equipment dealer or labels . distributor or from Exmark Mfg . Co . Inc . • R e place all w or n, damag ed, or missing safety • Safety signs ma y be affix ed b y peeling off the signs . bac king to expose the adhesi v e surface . Apply only to a clean, dr y surface . Smooth to remo
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Safety 74-1970 For Self-Propelled Units (MSKA21, MSKA21CA, MSKA21B, MSKA21BCA, MSHN21, and MSHN21B) 1. T ransmission speeds 2. Neutral 77-0500 103-6328 Common to All Units For MSKA21B and MSHN21B Units Only 1. Choke 4. Slow 2. Fast 5. Engine—stop 3. Continuous variable setting 93-7398 Common to All Units 104-1329 Common to All Units 104-8585 Common to All Units 103-6327 For MPKA21, MSKA21, and MSHN21 Units Only 1. Choke 3. Continuous variable setting 2. Fast 4. Slow 10
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Safety 109-8190 On MPKA21CA and MSKA21CA Units Only 1. Fast 3. Slow 2. Continuous variable setting 109-8191 On MPKA21CA, MSKA21CA, and MSKA21BCA Units Only 109-8194 On MSKA21BCA Units Only 1. Fast 3. Slow 2. Continuous variable 4. Engine—stop setting 1 1
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Specifications Specifications Model Numbers Serial Nos: 790,000 and Higher MPKA21; MPKA21CA; MSKA21; MSKA21CA; MSKA21B; MSKA21BCA; MSHN21; MSHN21B Systems Cutting Deck • Cutting Width: 21 inc hes (53.3 cm) Engine • Blade Brak e: W hen the blade eng ag ement control • Engine Specifications: See y our Engine Owner’ s is mo v ed to the diseng ag ed position a friction Man ual brak e pad stops the rotation of the blades . • RPM: 3300 (No Load) • Blade Size: (1 ea.): 20.88 inc hes (53.0 cm) • Dec k:
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Product Overview Overall Length and Height at Product Overview 2 1/4 inch Cutting Height: Handle Setting Length Height High 60.50 inc hes 42.75 inc hes (153.7 cm) (108.6 cm) Medium 64.25 inc hes 40.38 inc hes (163.2 cm) (102.6 cm) Lo w 67.00 inc hes 37.88 inc hes (170.2 cm) (96.2 cm) Overall Length and Height at Alternate Handle Mounting Position: Handle Setting Length Height High 62.63 inc hes 37.50 inc hes (159.1 cm) (95.3 cm) Figure 3 64.38 inc hes 35.50 inc hes Medium (163.5 cm) (90.2 cm) 1.
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Operation control lev er . W hen this bail is released the unit will Operation stop mo ving . Note: Deter mine the left and right sides of the mac hine from the nor mal operating position. Throttle-Choke Control T he throttle-c hok e control is located on the left side Controls of the handles as sho wn in Figure 4 . T he lev er is used to control engine speed. Mo ving Blade Control Bail the lev er to the full forw ard (Chok e) position will Located on the upper handle as sho wn in Figure 4 . pla
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Operation Figure 5 1. Ground speed control Figure 7 MSHN21 and MSHN21B Units Fuel Shut-Off V alve 1. Fuel valve F or MPKA21, MSKA21, and MSKA21B Units: T he fuel shut off v alv e is installed on the fuel line F or MPKA21CA, MSKA21CA, and MSKA21BCA midw a y betw een the fuel tank and the engine as Units: Do not ha v e a fuel shut off v alv e . sho wn in Figure 6 . T he fuel shut off v alv e shuts off the flo w of fuel when the mac hine will not be used for a few da ys , when parking inside a buil
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Operation Mak e sure y ou understand the controls , their 1. Install the hardw are in the lo w er holes in the locations , their functions , and their safety handle and latc hes as sho wn in Figure 8 . requirements . 2. Install hardw are in one of the three adjustment holes in the upper ends of eac h of the handle R efer to the Maintenance section and perfor m all the latc hes to obtain the desired handle height within necessar y inspection and maintenance ste ps . the selected rang e . 3. Slide
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Operation F or MSHN21 and MSHN21B Units: see Figure 7 . MPKA21CA, MSKA21CA, and MSKA21BCA Units: Do Not ha v e a fuel v alv e . 3. F or MSHN21 MSHN21B, MPKA21, MSKA21, and MSKA21B Units: Mo v e the throttle-c hok e control to the Chok e position. Note: Do Not use the c hok e when the engine is w ar ms up . F or MPKA21CA, MSKA21CA, and MSKA21BCA Units: Mo v e the throttle control to the F ast position. Press the primer bulb tw o times (see Figure 11 ). Figure 9 All Honda Units 1. Oil fill/dipstic
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Operation Note: If the blade does not stop within 3 Note: T he blade control lev er will release rapidly seconds after releasing the blade control bail, when the blade control bail is released. T o a v oid contact an A uthorized Ser vice Dealer . minor injur y , k ee p hands clear of the blade control lev er when the blade control bail is released. 2. Close the fuel shut-off v alv e , if equipped with, when the mac hine will not be in use for a few da ys , when transpor ting, or when the unit is
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Operation DANGER If the blade brak e clutch system is inoperati v e, the blade will contin ue to r otate when y ou r elease the blade contr ol bail. Contact with the blade could occur , causing serious injur y . • Check the BBC operation bef or e each use. • Nev er use the BBC-equipped la wn mo w er with an inoperati v e safety system. • T ak e y our la wn mo w er to an Authoriz ed Figure 12 Ser vice Dealer f or r epair if the safety 1. Crumpled newspaper 2. 5 inches (12.7 cm) system f ails to o
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Operation W ARNING Adjusting the cutting height lev er s could bring y our hands into contact with a mo ving blade. A mo ving blade can cause serious injur y . • Stop the engine and w ait f or all mo v ement to stop bef or e adjusting the cutting height. • Do Not put y our finger s under the housing when adjusting the cutting height. Figure 14 1. Bag Frame on retaining 3. Handle fully 1. Pull the wheel height adjustment lev er to w ard post. forward—discharge door closed. the wheel ( Figure 13 )
