for 4200, 4300, 4400 and 790 Compact Utility Tractors 59-Inch
IntroductionSafety SignsPreparing VehicleInstallingRemovingOperating MachineService Machine SafelyServiceLubricate Discharge Chute Cable Pulleys Lubricating Gearbox Driveshaft Checking Snowblower Gearbox Oil Level Replacing Discharge Chute Cables Reversing or Replacing Scraper Blade Reversing Or Replacing Wear Plate TroubleshootingStoring AttachmentsAssemblySpecificationsJohn Deere Service LiteratureQuality Doesn't End When You Invest In A Deere
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ServiceService Snowblower Safely
2. Put PTO lever in OFF position. 4. Lower snowblower to the ground. 7. Wait until auger and blower have stopped before you service snowblower. GreaseUse grease based on the expected air temperature range during the service interval. The following greases are preferred: ˇ John Deere Moly High Temperature EP Grease. ˇ John Deere High Temperature EP Grease. Other greases may be used are: ˇ SAE Multipurpose EP Grease with 3 to 5 percent molybdenum disulfide. ˇ 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 (80w-90) Gear Lubricant is recommended. Other oils may be used if they meet one or more of the following: ˇ API Service Classification GL-5. ˇ Military Specification MIL-L-2105D. ˇ Military Specification MIL-L-2105C. ˇ Military Specification MIL-L-2105B. Service IntervalsService RecordLubricate Discharge ChuteGrease under chute (A) before each use. Lubricate Discharge Chute Cable PulleysPlace a light amount of grease on each pulley (A). Lubricating Gearbox Driveshaft4. Lubricate point (A) with one or two shots of John Deere Moly High Temperature EP Grease or an equivalent. Lubricate Front DriveshaftLubricate U-Jointsˇ Lubricate each U-joints (A) with one or two shots of John Deere Moly High Temperature EP grease or an equivalent. Lubricate Inner Shaftˇ Lubricate inner shaft at location (B) with John Deere Moly High Temperature EP grease or an equivalent. ˇ Extend and compress driveshaft several times to distribute grease. Lubricate Mid-PTO DriveshaftLubricate U-JointsPicture Note: driveshaft removed for clarity ˇ Lubricate each U-joints (A) with John Deere Moly High Temperature EP grease or an equivalent. Lubricate Inner Telescoping Tubeˇ Separate driveshaft telescoping members. ˇ Lubricate inner telescoping tube (B) with John Deere Moly High Temperature EP grease or an equivalent. Lubricate Auger ShaftLubricate points (A) with John Deere Moly High Temperature EP Grease or an equivalent until it comes out at auger shaft ends (B) near gearbox. Check Auger Gearbox Oil level1. Park tractor on a level surface. 2. Stop snowblower and engine. 3. Lower snowblower to the ground. 6. Oil should be level with check plug hole.
7. If oil is low, remove fill plug (B). 8. Add gear oil specified in this section. Add until oil begins to come out check plug hole. 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 the 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 through check plug hole. 8. Install and tighten check plug. Replacing Shear Bolts1. If you hit a solid object, STOP snowblower immediately. NOTE: A shear bolt (A) is installed in each end of auger. The shear bolts will break when snowblower hits a solid object. This protects the drive system from damage. 5. Remove broken shear bolt (A). 6. Find and correct cause for shearing.
7. Install new shear bolts. Use one of the new shear bolts (C) stored in rear housing. Replacing Discharge Chute Cables2. Turn chute 100° to the 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 (A). 6. Disconnect cable from chute (B). 7. Remove nut (D), bolt and washers (C). 8. Remove cable ends (F) and (E) from pulleys. Remove cable assembly. 9. Install new cable so longer cable end (F) is to the left and shorter cable end (E) is to the right. 10. Install bolt and washers (C) in cable assembly eyelet. 11. Install and tighten nut (D). 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. 3. Use locking pliers to pull cable tight. ˇ 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: Reverse the blade when one edge of blade (A) becomes worn, rough, or bent. If both edges of blade are worn, rough, or bent, replace blade. 1. Safely raise snowblower. Put blocks under auger housing (B) to prevent snowblower from falling. 2. Remove nuts (C), and bolts. 4. Flip blade so rear edge of blade is at front. 5. Install blade. Install bolts and tighten nuts. Reversing Or Replacing Wear PlateWhen edge of plate (A) becomes worn, rough, or bent, reverse the plate. If both edges are worn, rough or bent, replace the plate: ˇ Raise snowblower. Put blocks under the auger housing to prevent snowblower from falling. ˇ STOP engine. Lower snowblower. Lock park brake. ˇ Remove two nuts (B) and bolts. Remove plate. ˇ Install plate with square end to rear of snowblower. Install bolts and nuts and tighten. ˇ START engine and raise snowblower. Remove blocks. Lower snowblower. |