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Resumen del manual
Deck Flip-Up 1 4 100 hours 4. Push Arm Tubes 1 2 100 hours 5. Caster Pivots *0 3 *yearly . See Section 4.2.5 c) for special lubrication instructions on the front caster pivots and Section 5.2.6 for special lubrication instructions on the rear caster wheel hub. c) Lubricate caster pivots once a year. Remove hex plug and cap. Thread grease zerk in hole and pump with grease until it oozes out around top bearing. Remove grease zerk and thread plug back in. Place cap back on. 4.2.6 Lubricate caster wheel hub: Service Interval: Once Yearly a) Stop engine, wait for all moving parts to stop, and remove key. b) Remove caster wheel from caster forks. c) Remove seal guards from the wheel hub. d) Remove one of the spacer nuts from the axle assembly in the caster wheel. Note that thread locking adhesive has been applied to lock the spacer nuts to the axle. Remove the axle (with the other spacer nut still assembled to it) from the wheel assembly. e) Pry out seals, and inspect bearings for wear or damage and replace if necessary. f) Pack the bearings with a NGLI grade #1 multi-purpose grease. g) Insert (1) bearing, (1) new seal into the wheel. NOTE: Seals (Exmark PN 103-0063) must be replaced. h) If the axle assembly has had both spacer nuts removed (or broken loose), apply a thread locking adhesive to (1) spacer nut and thread onto the axle with the wrench flats facing outward. Do not thread spacer nut all of the way onto the end of the axle. Leave approximately 1/8” (3 mm) from the outer surface of the spacer nut to the end of the axle inside the nut. i) Insert the assembled nut and axle into the wheel on the side of the wheel with the new seal and bearing. j) With the open end of the wheel facing up, fill the area inside the wheel around the axle full of NGLI grade #1 multi-purpose grease. k) Insert the second bearing and new seal into the wheel. l) Apply a thread locking adhesive to the 2nd spacer nut and thread onto the axle with the wrench flats facing outward. m) Torque the nut to 75-80 in-lbs. (8-9 N-m), loosen, then re-torque to 20-25 in-lbs. (2-3 N-m). Make sure axle does not extend beyond either nut. FIGURE 8 CASTER WHEEL ASSEMBLY 11 n) Re-install the seal guards over the wheel hub and insert wheel into caster fork. Re-install caster bolt and tighten nut fully. IMPORTANT: To prevent seal and bearing damage, check the bearing adjustment often. Spin the caster tire. The tire should not spin freely (more than 1 or 2 revolutions) or have any side play. If the wheel spins freely, adjust torque on spacer nut until there is a slight amount of drag. Re-apply thread locking adhesive. c) Lubricate switch actuator rod with spray type lubricant or light oil. 4.2.7 Change gearbox oil: Change oil in all 3 gearbox housings after first 50 hrs of operation. Check every 100 hours thereafter. Add oil as needed until level with oil drain plug. a) Stop engine, wait for all moving parts to stop, and remove key. b) Place unit on a level surface. c) Remove the gearbox and drive shaft assembly from the mower deck. Retain hardware for re-use. d) Remove the large oil drain plug on the front of each of the 3 gearboxes and drain oil. See Figure 9. e) Remove small magnetic plugs and wipe away any material accumulated on the plugs. See Figure 9. FIGURE 9 GEARBOX OIL DRAIN LOCATIONS f) Apply a Teflon pipe sealant to all small magnetic plugs and re-install into the gearbox. g) Re-install the gearbox and drive shaft assembly to the mower deck. h) Fill gearbox with Mobil 1 75W-90 gear lube oil until level with oil drain plug. NOTE: Mower deck should remain level to the ground when filling gearbox with oil. Do not fill gearbox with deck raised in the service position. i) Apply a Teflon pipe sealant to the 3 large oil plugs and re-install into the gearbox. 4.2.8 Thread locking adhesives such as “Loctite 242” or “Fel-Pro, Pro-Lock Nut Type” are used on the following fasteners: a) Caster wheel spacer nuts. 4.3 ADJUSTMENTS IMPORTANT: Disengage PTO, shut off engine, wait for all moving parts to stop, and remove key before servicing, cleaning, or making any adjustments to the unit. 4.3.1 Cutting Height Adjustment: a) Stop engine, wait for all moving parts to stop, and remove key. b) Move cotter pins on four deck support pins to proper hole for height of cut desired. 12 4.3.2 Deck Leveling: a) Position mower on a flat surface. b) Stop engine, wait for all moving parts to stop, and remove key. c) Inflate drive tires to 15 psi (103 kPa). d) Verify all hairpins are in the 3” deck height holes with the spacers under the hair pins. See Figure 10. e) Shorten/lengthen each deck support pin to obtain blade tip height of 3.0” at the front of the deck and 3.25” at the rear of the deck. FIGURE 10 DECK SUPPORT PIN ASSEMBLY 4.3.3 Caster pivot bearings pre-load adjustment: a) Remove dust cap from caster and tighten nyloc nut until washers are flat. Back the nyloc off 1/4 of a turn to properly set the pre-load on the bearings. Note: If disassembled, make sure the spri...
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