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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Paul, Minnesota 55114 U. S. A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (Full address of the manufacturerauthorized representative in the community must also give the business name and address of the manufacturer) declare under our sole responsibility, that the product NATIONAL HYDRO 70" TRIPLEX MOWER (Make and model) to which this declaration relates corresponds to the relevant basic safety and health requirements of the Directive 89/392/EEC, (if applicable) and to the requirements of other relevant Directives: EN292-1&2--EN294--EN349 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Adjust switches so that unit cannot be started unless pedal is in the neutral position. 7. 3REEL CONTROL CLUTCH ADJUSTMENT The reel control clutch idler is preset at the factory. However, if adjustment is necessary, the position of the idler can be adjusted with the clevis on the clutch rod. Loosen the jam nut that locks the clevis to the clutch rod and turn the clevis further onto the rod until proper tension is achieved, and re-tighten nut against clevis. If clevis bottoms out on the threaded rod replace the belts. CLEVIS CLUTCH ROD CLUTCH IDLER LIFT STRAP 13 REEL CONTROL CLUTCH ADJUSTMENT, Continued If clutch idler is restricted from its proper function, (engaging and disengaging reel belt drive), follow these steps. Make sure clutch rod is free from any restriction by moving lever arm back and forth. If the mounting bolts are torqued too tight, it restricts idler movement. Any restriction at this point will cause restriction with the idler arm. After loosening adjusting nuts on each side of the reel assembly, place a gauge plate under the bedknife and roller measuring the distance between bedknife cutting edge and the rollers. Adjust front and rear rollers equally and insure that the bottom of the bedknife is parallel with the ground. After height of cut setting is determined, re-tighten roller adjustment nuts. NOTE A height of cut tool, Part #070009 (shown below), complete with instructions, is available through the National Mower Parts Department. ROLLER ADJUSTERS BED BAR 7. 4 SEAT SWITCH ADJUSTMENT The HYDRO 70 has a safety switch mounted directly to the seat bottom. The switch requires no adjustment. BED KNIFE BAR ROUND HEAD SCREW HEX HEAD CAPSCREW If wires should become disconnected from the seat switch it prohibits other safety features from working properly. WING NUT INSTRUCTIONS: 1. Preparation of barPosition round head capscrew to desired height of cut. Measure from flat surface of bar to the underside of round head screw. 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. 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. [. . . ] 1 REEL, 6 _____ ____________302491_______________________________________________________ ____3_____________ ______________Blade__________________________________1_ _ _______ _ 4 302738 REEL, 8 Blade 1 5 06120 CONE, Bearing 2 CUP, _______ ____________06121________________________________________________________ _________________ ____________Bearing___________________________________2_ ______ _ 6 201437 WASHER, Backup 1 7 302838 BRACKET, Rear Roller 1 BRACKET, Pull Arm ____________302245_______________________________________________________ ____8_____________ _____________________________________________________1_ _ _______ _ 9 04077 END, Rod 2 10 302639 ROD, Pull 1 SPACER ____________05072________________________________________________________ ___11____________ ______________________________________________________1_ __ ______ _ 12 302830 FRAME, Cutting Unit 1 13 302311 BEDBAR & KNIFE ASSEMBLY 1 ADJUSTER, Roller ____________302846_______________________________________________________ ___14_____________ _____________________________________________________2_ __ _______ _ 15 05080 SHAFT, Roller 1 16 201802 NUT, Bedbar 8 ____________02109________________________________________________________ ___17___________________SCREW, _Bedbar _______________________________8_ __ _____ ________ _______ _ 18 302310 BEDKNIFE 1 19 302504 SPACER 17 WASHER ____________02641________________________________________________________ ___20____________ _____________________________________________________16_ __ ______ __ 21 02272 NUT, Roller Shaft 2 22 04541 SPRING 1 ____________302252______PULL______(includes______________________________ ___23_____________ _____________________________________________________1_ __ _______ _____ ARM ________ #25) _ 24 302255 SLEEVE 1 25 06031 BUSHING 1 ____________04071_______RING, __________________________________________1_ ___26____________ ____________ ___________________________________________ __ ______ ______Snap _ 27 02644 WASHER 3 28 302248 ARM, Pull (includes #47) 1 29 302511 PLATE, Side 1 30 302360 1 _______________________SCRAPER, ________________________________________ _________________________________ Pulley __________________________________ _________________ 31 201383 CAPSCREW 1 32 302836 BRACKET, Rear Roller 1 33 03606 1 _______________________PULLEY___________________________________________ ______________________________ ___________________________________________ ________ 34 302847 ADJUSTER, Roller 2 35 06119 BEARING 1 36 200236 1 _______________________ADJUSTER, _______________________________________ __________________________________ Reel___________________________________ ________________ 37 04542 SPRING, Reel Adjuster 2 38 05075 ADJUSTER, Hex Reel 2 39 302507 2 _______________________ROLLER, __________________________________________ ________________________________Rear (includes #40)_______________________ _________ __________________ 40 05078 PIN, Roller 1 41 302181 SHIELD 1 302842 1 _______________________PLATE, ____________________________________________ _42___________________________Side, ______________________________________ __ _______ _____R. H. 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. [. . . ]