User manual NATIONAL MOWER IM25

[. . . ] Never attempt to adjust cables or cutting height when engine is running. Use extreme caution when handling gasoline, it is highly flammable. Initial Starting Procedure 1. However, it is recommended that the engine be inspected for presence of oil at the proper level (see engine manual) before starting. A) by pulling lever backand over center to lock. Introduction This machine has been designed with professional quality components to specifically mow baseball infield turf. [. . . ] Check to see that the blades are cutting the paper all the way across. After each mowing session, clean clippings out of basket, off reel and all other surfaces to prevent corrosion. Inspect reel and bearing surfaces for foreign material that might prevent reel from rotating freely and clean as necessary. Follow engine manufacturers recommendations carefully to prolong engine life. Use a lithium base type grease at these locations every 8 hours of operation. Use a light machine oil at all pivot points every 30 hours of operation. Use heavy gloves and be carefulblades are sharp. Adjustments CONTROLS Adjustment of control cables have been made at the factory before shipment. If additional adjustment is needed, move adjusting nuts at the machine end of the cables. HEIGHT OF CUT Cutting height should be preset by the dealer according to ordering instructions prior to delivery. If a change in cutting height is required, the following procedure must be followed: 1. There are two positions available for the Rear Roller Assembly (19, Fig. The bearings for the rear roller shaft must be located in the lower position if the cutting height is over 1 and the upper position if the cutting height is 1 or less. Disassembly of the rear roller assembly is necessary to change the bearing location. 4 REEL END PLAY ADJUSTMENT As the reel is used, normal wear of the reel bearings will cause end play. This condition could cause uneven wear to moving parts and uneven cutting of turf. Test for end play periodically by trying to move the reel from side to side in the frame. If reel is rotating freely and no end play can be detected, retighten the lock nut on the adjusting bolt. IM25OM-1/2000-250 NATIONAL ® IM25 Infield Mower FIGURE A FIGURE B FIGURE C 5 Backlapping Backlapping is a very important step in maintaining sharp reel blades on the mower. This procedure should be performed when the reel blades and bed knife become slightly rounded and the turf is not cut cleanly after a slight bed knife adjustment. Also, after grinding the bed knife and reel, backlapping should be done to establish a perfect match between the be knife and the reel blades. Make sure to adjust the reel to the bed knife so that the reel is level with the bed knife and light contact is maintained. Raise the mower up off the ground until the rear roller clears the ground as shown in Figure D. C) on the back lap assembly, pivot assembly rearward and tighten hex nut as shown in Figure D. With reel running, apply lapping compound to the reel with a 2 or 3 brush. [. . . ] 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 202436 KEY, #9 Woodruff 2 8 06140 BEARING 4 9 02502 WASHER 1 12 IM25OM-1/2000-250 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 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 ___________________________________________________________________________________________________________________________________________ 7 200676 BUSHING 1 8 02034 CAPSCREW, 3/816 X 3/4 1 9 02403 WASHER, Flat, 3/8 1 ___________________________________________________________________________________________________________________________________________ 10 02303 LOCKWASHER, 3/8 1 14 IM25OM-1/2000-250 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. All transportation charges on parts submitted for repair or replacement under this warranty shall be paid for by the purchaser. 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