47 and 59-Inch for 55 Series Tractors, 670 and 770 Tractors
IntroductionSafetyPreparing VehicleInstallingRemovingOperatingService SafelyServiceChecking Auger Gearbox Oil Level Checking Snowblower Gearbox Oil Level Replacing Discharge Chute Cables Reversing or Replacing Scraper Blade TroubleshootingStoring MachineAssemblySpecificationsJohn Deere Service LiteratureJohn Deere Quality Statement
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ServiceService IntervalsGreaseUse grease based on the expected air temperature range during the service interval. The following greases are preferred: · John Deere Moly High Temperature EP Grease. · John Deere High Temperature EP Grease. Other greases may be used are: · SAE Multipurpose EP Grease with 3 to 5 percent molybdenum disulfide. · Greases meeting Military Specification MIL-G-10924C may be used as arctic grease. Gear OilUse oil viscosity based on the expected air temperature range during the period between oil changes. John Deere GL-5 Gear Lubricant is recommended. Other oils may be used if they meet one or more of the following: · API Service Classification GL-5. · Military Specification MIL-L-2105D. · Military Specification MIL-L-2105C. · Military Specification MIL-L-2105B. Oils meeting Military Specification MIL-L-10324A may be used as arctic oils. Lubricating Worm Gear Shaft4. Lubricate point (A) with John Deere Moly High Temperature EP Grease or equivalent. Lubricating Driveline4. Lubricate points (A) with John Deere Moly High Temperature EP Grease or equivalent. Lubricating Auger ShaftLubricate points (A) with John Deere Moly High Temperature EP Grease or equivalent until it comes out of auger shafts (B) at gearbox. Service Snowblower Safely
2. Put PTO lever in OFF position. 4. Lower snowblower to ground. 7. Wait until auger and blower have stopped before you service snowblower. Checking Auger Gearbox Oil Level1. Park tractor on level surface. 2. STOP snowblower and engine. 3. Lower snowblower to ground. 6. Oil should be level with checkplug hole.
7. If oil is low, remove fill plug. 8. Add gear oil specified in this section. 9. Install and tighten fill plug and check plug. Checking Snowblower Gearbox Oil Level1. Park tractor on level surface. 2. STOP snowblower and engine. 3. Lower snowblower to ground. 6. Use bent wire to check oil level in gearbox. Oil should be 19 mm (3/4 in.) below hole (A). 7. If oil is low, add oil (See this section.) 8. Install and tighten check plug. Replacing Shear BoltsNOTE: A shear bolt (A) is installed in each end of auger. The shear bolts will break when snowblower hits a solid object. This protects drive system from damage. 1. If you hit a solid object, STOP snowblower immediately. 6. Find and correct cause for shearing. 7. Install new shear bolts. Use one of shear bolts (A) stored in rear housing. Replacing Discharge Chute Cables2. Turn chute 100° to left using SCV lever. Hydraulic cylinder should be completely retracted. 3. Stop engine. Lower snowblower. Lock park brake. 4. Remove two nuts, washers, and cable shield. 6. Disconnect cable ends from chute. 7. Remove nut (A), bolt and washers (B). 8. Remove cable ends (C) and (D) from pulleys. Remove cable assembly. 9. Install new cable so longer cable end (C) is to left and shorter cable end (D) is to right. 10. Install bolt and washers (B) in cable assembly eyelet. 11. Install and tighten nut (A). Routing Chute Cables1. Move chute so tab (A) on chute is in line with edge of cap screw (B). Chute opening will be to the left.l 3. Use locking pliers to pull cable tight. · Around bottom center pulley. 6. Use locking pliers to pull cable tight. Installing Cable Shield1. Make sure two flat washers are on cable shield bolts. 2. Install cable shield, two washers, and nuts. Reversing or Replacing Scraper BladeNOTE: When edge of blade (A) becomes worn, rough, or bent, reverse blade. If both edges of blade are worn, rough, or bent, replace blade. 1. Raise snowblower. Put blocks under auger housing to prevent snowblower from falling. |