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Resumen del manual
lbs. (136 N-m). b) Further tighten the nut until the next set of slots line up with the cross hole in the shaft. c) Replace cotter pin. Note: Do not use anti-seize compound on the wheel hub. 5.1.21 Thread locking adhesives such as “Loctite 242” or “Fel-Pro, Pro-Lock Nut-Type” are used on the following fasteners: a) Pump drive sheave setscrews. b) Square head setscrews on Hydro pump control arms. c) Shoulder bolts in ends of speed control crank. e) OPC lever setscrews. f) Electric clutch retaining bolt. g) Pump drive idler pivot bolt. h) Fuel tank bulkhead fitting threads. i) Thumb latch screw threads on handles. j) Caster wheel spacer nuts. (Reference Section 5.1.16) h) Cutter housing spindle nut. Adhesives such as “Loctite RC/609 or RC/680” or “Fel-Pro Pro-Lock Retaining I or Retaining II” are used on the following: a) OPC lever hubs and cross-shaft NOTE: Care must be used not to bond the bearing, next to each OPC hub, to the cross shaft which could cause binding of the OPC levers and erratic operation. b) Fuel tank studs where studs are inserted into tank. NOTE: When installing the nuts onto the fuel tank studs, fully tighten the nyloc nut and back off 1/2 turn. This allows for normal fuel tank expansion and contraction with changes in temperature and fuel levels. 5.1.22 Mobil HTS grease (or food-grade antisieze) is used in the following locations: a) Between the cutter housing spindle and bearings. b) Between the cutter housing spindle and sheave. c) Under top cutter housing bearing guard. 5.1.23 Dielectric grease is used on all blade type electrical connections to prevent corrosion and loss of contact. - 29 5.2 ADJUSTMENTS IMPORTANT: Disengage PTO, shut off engine, wait for all moving parts to stop, and remove key before servicing, cleaning, or making adjustments to the unit. 5.2.1 Cutting height and anti-scalp roller adjustment. CAUTION POTENTIAL HAZARD ¦ When mower deck is not installed or the two front support rod hairpins are removed, the unbalanced weight of the tractor or tractor with mounted mower deck support frame may cause the front of the unit to rise suddenly. WHAT CAN HAPPEN ¦ If the unit rises suddenly, injury may occur. HOW TO AVOID THE HAZARD ¦ Securely hold down the front end of the unit when the mower deck is not installed or front support rod hairpins are removed. a) Stop engine and wait for all moving parts to stop. b) Install hairpin clips in the holes for the desired cutting height. See Figure 9. IMPORTANT: To maintain correct cutting height and rake, check the following for proper adjustment. 1. The front and rear hairpins are in the same holes with the proper spacers under the hair pins. See Figure 8. 2. The tire pressures are set as directed in Section 5.1.13. 3. The length of the rear deck support link assemblies should average 6.89” (approximately 6 7/8” (17.5 cm)) from the center of the balljoint to the center of the farthest hole. See Figure 9. NOTE: All (4) pins must equally support the weight of the deck. Adjustment in the length of the rear deck support assemblies may be necessary. If one side is longer than 6.89” (17.5 cm), than the opposite side must be shorter by the same amount. LEFT HAND SIDE SHOWN FIGURE 9 CUTTING HEIGHT ADJUSTMENT - 30 c) Adjust anti-scalp rollers for Normal Operating Conditions. Place rollers in one of the positions shown in Figure 10. Rollers will maintain 3/4 in. (19 mm) clearance to the ground to minimize gouging and roller wear or damage. For Maximum Deck Flotation, place rollers one hole position lower. Rollers should maintain 1/4 in. (6.4 mm) clearance to ground. Do Not adjust rollers to support the deck. Be sure roller bolts and nuts are installed with the spring disc washer between head of the bolt and mounting bracket. Two types of anti-scalp roller assemblies are available. See Figure 10 to determine which assembly has been installed on the unit. Torque hardware as specified, or loss of roller may result. Type A – Torque the 3/8 whizlock nut to 40-45 ft-lbs. (54-61 N-m) Type B – Torque the 3/8 nyloc nut to 30-35 ft-lbs. (41-47 N-m) Torque the 3/8-24x2 Gr 8 hex capscrew to 50-55 ft-lbs (68-75 N-m) FIGURE 10 ANTI-SCALP ROLLER INSTALLATION AND CUTTING HEIGHT ADJUSTMENT d) When operating in extremely rough conditions it may be necessary to position the anti-scalp rollers one or two holes higher than described in "c" to prevent damage to the rollers and/or bolt failure. See Figure 10. NOTE: When anti-scalp rollers are placed in these positions, reduced deck flotation will result. 5.2.2 Pump drive belt tension adjustment: No adjustment necessary. 5.2.3 Mower deck drive belt: No adjustment necessary. 5.2.4 Blade drive belt tension: No adjustment necessary. 5.2.5 Hydro Drive Linkage Adjustment: a) Adjust Speed Control Linkage and Neutral Safety Switch 1. Stop engine and wait for all moving parts to stop. 2. Move speed control lever (located on console) to the full forward position and check orientation of tabs on the ends of the speed control cr...