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IM25
INFIELD MOWER
OWNERS MANUAL
NATIONAL MOWER CO. 700 Raymond Ave., P.O. Box 14299, St. Paul, Minnesota 55114-0299, U.S.A.
Phone (651) 646-4079 Fax (651) 646-2887
www.nationalmower.com
JANUARY 2000
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® NATIONAL IM25 Infield Mower Specifications Engine: 3.5 hp Briggs & Stratton I/C 4 cycle 1. Carefully uncrate the machine. w/gear reduction of 6:1 2. Attach the lower Handle Bar Assembly (1, Fig. B) Width of cut: 25 to the Handle Bar Brackets (2, Fig. A) with pivot Height of cut: 1/2 to 2 pins, flat washers and cotter pins from the loose Weight: 270 lbs. without fuel parts bag. Dimensions: 65" length w/basket x 32" width x 3. Insert Handle Adjustment Rods (3 , Fig. A) into 39-1/2" height L
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Operating Instructions 1. Unlock Parking Brake (9, Fig. A) by moving lever forward. 2. Pull Drive Bail (15, Fig. A) slowly back to handle to move forward. CAUTION: Make sure your path is clear before moving forward. Reel blades are sharp! Never attempt to 3. Adjust Throttle Control to desired mowing speed. adjust cutting height of reel to bed knife 4. Engage Reel Drive Lever (16, Fig. A and B) to start while the engine is running. mowing. 5. Release drive bail slightly from handle to disengage 2
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® NATIONAL IM25 Infield Mower FIGURE A FIGURE B FIGURE C 5
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Backlapping Backlapping is a very important step in maintaining Be extremely careful not to let the brush, your sharp reel blades on the mower. This procedure should fingers or your clothing get caught in the reel. be performed when the reel blades and bed knife become Use approved safety glasses and gloves to slightly rounded and the turf is not cut cleanly after a protect you from flying particles and abrasives. slight bed knife adjustment. Also, after grinding the bed knife and reel, backlapp
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® NATIONAL IM25 Infield Mower PARTS LIST Note: For your records and future ordering, fill in the following information. DATE PURCHASED MODEL NO. SERIAL NO. ORDERING INFORMATION When ordering replacement parts, always furnish: 1. Your complete name, address and phone number. 2. Model Number and Serial Number (located on the rear side of the top plate). 3. Part Number (it is recommended that the correct number be verified with a current Master Price List). 4. The full Description of the part. 5.
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FIGURE 1 8 IM25OM-1/2000-250
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® NATIONAL IM25 Infield Mower FIGURE 1 MAIN ASSEMBLY Item Part No. Description Qty. 1 400115 HANDLE BAR, Upper 1 2 09201 CONTROL, Reel 1 _______________________________________________________________________________________________________________________________ 3 09200 CONTROL CABLE, Reel ____________ 1 4 200509 LEVER, Brake 1 5 400114 HANDLE BAR, Lower 1 _______________________________________________________________________________________________________________________________ 6 08083
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FIGURE 2GROUND DRIVE COUNTERSHAFT ASSEMBLY, 400040 Item Part No. Description Qty. 1 03117 SPROCKET, 14 Tooth 1 2 03634 PULLEY 1 3 06136 BEARING 2 ___________________________________________________________________________________________________________________________________________ 4 400020 PLATE, Bearing Carrier, Short 1 5 400063 PLATE, Bearing Carrier, Long 1 6 400069 RETAINER, Clutch Cable 1 __________________________________________________________________________________________________
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® NATIONAL IM25 Infield Mower FIGURE 3REEL DRIVE COUNTERSHAFT, 400041 Item Part No. Description Qty. 1 202839 SPROCKET, 24 Tooth 1 2 03634 PULLEY 1 _______________________________________________________________________________________________________________________________ 3 06136 BEARING ____________ 2 4 400020 PLATE, Bearing Carrier, Short 1 5 400063 PLATE, Bearing Carrier, Long 1 _____________________________________________________________________________________________________________
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FIGURE 4REAR ROLLER ASSEMBLY, 400038 Item Part No. Description Qty. 1 400037 TUBE, Roller 2 2 400097 SHAFT, Roller 1 3 400013 RING, Pinion 2 ___________________________________________________________________________________________________________________________________________ 4 400014 RETAINER, Pinion 2 5 04531 SPRING, Pinion Pawl 2 6 09077 PAWL, Pinion 2 _______________________________________________________________________________________________________________________________________ 7
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® NATIONAL IM25 Infield Mower FIGURE 5CLUTCH ASSEMBLY, 400100 Item Part No. Description Qty. 1 400044 BRACKET, Mowing Clutch 1 2 400099 BRACKET, Clutch Mount 1 3 400080 BRACKET, Transport Clutch 1 ___________________________________________________________________________________________________________________________________________ 4 03608 PULLEY 2 5 200676 BUSHING 2 13
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FIGURE 6BACKLAP GEAR ASSEMBLY, 400104 Item Part No. Description Qty. 1 400106 BRACKET 1 2 400105 GEAR, with Bushing, 24 Tooth 2 3 02502 WASHER 4 ___________________________________________________________________________________________________________________________________________ 4 04020 LOCKRING, 3/4 2 5 400109 PIN, Gear 2 6 02148 SCREW, Flat Head Slotted, 5/1618 X 3/4 2 ____________________________________________________________________________________________________________________
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® NATIONAL IM25 Infield Mower NATIONAL MOWER COMPANY ONE YEAR LIMITED WARRANTY For the period of one year from the date of purchase (45 days if the product is used for rental purposes), National Mower Company will repair or replace free of charge, for the original purchaser, any part or parts found by inspection to be defective by our Factory Authorized Service Station or by the Factory at St. Paul, Minnesota to be defective in material or workmanship or both. All transportation charges on p
