User manual NATIONAL MOWER HYDRO70

[. . . ] OWNER'S MANUAL Includes Assembly, Maintenance & Parts Lists For Serial Numbers 1586 & Up HYDRO 70" TRIPLEX NATIONAL MOWER CO. HYD70OM-8/99 700 Raymond Ave. , P. O. Paul, Minnesota 55114-0299, U. S. A. Phone (651) 646-4079 Fax (651) 646-2887 DECLARATION OF CONFORMITY according to Directive 89/392/EEC We NATIONAL MOWER COMPANY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (Name of supplier) 700 Raymond Avenue, St. Paul, Minnesota 55114 U. S. A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Measure from flat surface of bar to the top of the hex head capscrew. Lock hex head capscrew in position with wing nut. Setting height of cutHook round head screw on top edge of bedknife, and rest hex head capscrew against bedbar. Adjust front and rear roller adjusters so that the rollers contact bar. Check roller placement for the full length of the cutting unit by moving the bar side to side while still located on the bedknife/bedbar to achieve consistent height of cut the full width of the cutting unit. Lock roller adjusters in place. To avoid possible serious bodily injury, before performing any adjustments, maintenance, or lubrication, place all controls in Neutral, lower the mowers to the ground, engage parking brake, turn ignition switch off and remove key. 7. 5HEIGHT OF CUT ADJUSTMENT The height of cut is variable and adjusted by moving the front and rear roller brackets to the desired height. It is important to get all rollers adjusted to the same height, keeping the bed knife parallel to the ground, so that there will be uniform cutting on the entire width of the mower. Do not adjust rollers by sight. 14 HY70OM-8/99 ® NATIONAL HYDRO 70" TRIPLEX 7. 6 REEL TO BEDKNIFE ADJUSTMENT The reel is adjusted to a fixed position bedknife. This makes a more rugged and stable frame retaining adjustment longer. To adjust the reel to bedknife contact, turn the hex adjuster on each side of the reel down. Proceed slowly and do not over adjust - about 1/8th of a turn on each side. The reel should wipe or lightly touch the bedknife. By using paper strips held between reel and bedknife, check to see that blades are cutting the paper all the way across. 7. 8 BACKLAPPING PROCEDURE Back lapping is a very important step in maintaining sharp reel blades on the rear and wing mowers. Many types of compounds are available for lapping. However, we recommend a good pre- mixed water soluble compound such as Pinhigh. Prices, grit ranges and ordering information are available by calling a toll free phone number 1-800-422-4748. Pre-mixed compound saves the time required to mix, eliminates the waste of abrasive, rinses off easily with water and is available in all grit ranges from coarse to extra fine. This procedure should be performed when the reel blades and bed knife become slightly rounded and the grass is not cut cleanly with only a slight bed- knife adjustment. After grinding the bedknife and reels, backlapping should be done to establish a perfect match between the bedknife and reel blades. Clean cutting units of any foreign debris and disengage reel clutch. Make sure to adjust the bedknife to the reel so that the bedknife is level with the reel and light contact is maintained. Reels must be run in a reverse direction to be lapped. [. . . ] 43 302401 GUARD, Rear 1 44 302658 SLEEVE 1 SPRING 1 __________04544__________________________________________________________ _45____________ _________________________________________________________ __ ______ 46 302273 CARRIER, Reel, R. H. 1 06035 BUSHING 2 __________________________________________________________________________ _47______________________________________________________________________ __ 48 03930 BELT, BX-38 1 49 302653 CAP, End 2 302513 2 _______________________ROLLER_(includes_#15, _______49) ___________________ _50__________________________________________19-21, ______________________ __ ________ ________ ____ ______ ___ 51 302680 REEL GUARD ASSEMBLY, R. H. 1 200256 1 _______________________SCREW___________________________________________ _53___________________________ _____NUT__________________________________ __ ________AND ____ ® NATIONAL HYDRO 70" TRIPLEX 41 42 PUMP WHEEL MOTOR FILTER LIFT CYLINDER NEEDLE VALVE LIFT VALVE TANK WHEEL MOTOR REAR WHEEL MOTOR HY70OM-8/99 HYDRAULIC HOSE AND LINE ASSEMBLY Item Part No. Description Qty. 1 07303 HOSE, Motor 3 12 07304 HOSE, Lift Cylinder 1 2 07309 LINE, Pump to Tee 1 13 07308 LINE, Case Drain 1 3 07310 LINE, Pump to Tee 1 14 07302 HOSE, Case Drain, L. H. [. . . ]