Stimmen - 2, Durchschnittliche Bewertung: 4.5 ( )

Hersteller: Land Pride Dateigröße: 5.46 mb Dateiname: 21d2179f-4f36-40ef-9179-2740e675791c.pdf Unterrichtssprache:

With careful and systematic inspection, you can avoid costly maintenance, time and repair. After using your cutter for several hours, check all bolts to be sure they are tight. Replace any worn, damaged or illegible safety decals by obtaining new decals from your Land Pride Dealer. Service Cutting Blades 1. Both blades should be sharpened at the same angle as the original cutting edge and must be replaced or reground at the same time to maintain proper balance in the cutting unit. 2. Both blades should weigh the same after sharpening. 3. When replacing or sharpening the cutter blades, examine bolts for excessive wear and replace if necessary. To replace blades: a. Order blade bolt Land Pride part # 802-277C. b. Blade shim (#30), must be installed to insure a tight and proper fit between the blade bolt and blade. Too tight a fit may cause blade to not swing back into proper cutting position after striking obstacles. Too loose a fit will cause play between blade bolt and blade resulting in excessive wear on blade carrier, blade bolts and blades. Three sizes of shims are available: 16 ga., part no. 312- 075D; 18 ga., part no. 312-082D; & 20 ga., part no. 312-089D. c. Torque blade bolt lock nut to 450 ft. pounds. Use a 3’ long pipe to achieve proper torque. 4. If replacing dishpan, nut on gearbox output shaft should be torqued to 450 foot/pounds and cotter pin installed in nut with legs securely bent around nut. Shearbolt Driveline Cutter drive components are protected from shock loads by a 1/2" shear bolt. If shear bolt fails, replace with a 1/2" x 3 1/2" long hex bolt, grade 2. Shear bolt failure can be avoided by engaging the PTO slowly at low engine rpm. Walterscheid Slip Clutch Run-In Refer to Figure 5-1: RC15 and RC25 Rotary Cutters drive components are protected from shock loads by a two plate slip clutch and the RC35 Rotary Cutters are protected by a four plate slip clutch. The clutch should slip during operation to protect the cutter from excessive loads. Prior to initial operation and after long periods of inactivity, the Friction Clutch should be "run-in". a. Tighten all 4 nuts uniformly until the spring load is low enough that the clutch slips freely with the PTO engaged. b. Turn nuts fully back. Clutch is ready for use. ! CAUTION! Engage parking brake, disengage PTO, shut off tractor, and remove key before making any of the following adjustments. Eurocardan Clutch Run-In Refer to Figure 5-2: 1. Using a pencil or other marker, scribe a line across the exposed edges of the clutch plates and friction disks. 2. Carefully loosen each of the 8 spring retainer nuts on the clutch housing a total of EXACTLY 2 revolutions. It will be necessary to hold the hex end of the retainer bolt in order to count the exact number of revolutions. 3. Start the tractor and engage the PTO drive for 2-3 seconds to permit slippage of the clutch surfaces. Disengage the PTO, then re-engage a second time for 2-3 seconds. Disengage the PTO, shut off tractor and remove key. Wait for all components to stop before dismounting from tractor. NOTE: Care should be taken in order not to remove any more material than necessary when sharpening blades. Slip Clutch Driveline Figure 5-1 14221 Clutch Figure 5-2 13693 18 Section 5 Maintenance and Lubrication RC15, RC25, and RC35 Series Rotary Cutter 312-298M 9/25/08 Table of Contents Land Pride 4. Inspect the clutch and ensure that the scribed markings made on the clutch plates have changed position. If any two marks on a friction disk and plate are still aligned, such indicates that slippage has not occurred and the clutch must be disassembled to separate the friction disks, see "Clutch Assembly and Disassembly", on page 18. 5. Tighten each of the 8 spring retainer nuts on the clutch housing EXACTLY 2 revolutions to restore the original clutch setting pressure. 6. The clutch should be checked during the first hour of cutting and periodically each week. An additional set of scribe marks can be added to check for slippage. See "Clutch Assembly and Disassembly", on page 18, to adjust for proper spring length. Eurocardan Clutch Assembly & Disassembly If the clutch run-in procedure, see "Clutch Run-In" on page 17, indicated that one or more of the friction disks did not slip, the clutch must be disassembled to separate the friction discs. Refer to the Parts Section of this manual for a detailed parts breakdown. Refer to Figure 5-3: Disassembly of the clutch is simply a matter of first removing the spring retainer nuts (#1), springs (#2) and bolts (#3) from the assembly. Each friction disc (#4) must then be separated from the metal surface adjacent to it. Inspect all parts for excessive wear and condition. Clean all parts that do not require replacement. The original friction disc thickness is 1/8" (3.2mm) and should be replaced if the thickness falls below 3/64" (1.1mm). If the clutches have been slipped to the point of "smoking", the friction discs may be damaged and should be replaced. Heat build...

Herunterladen

Geben Sie zwei Ziffern: