John deere fd620 pdf download

Inspect the O-ring. It must be free of damage or defects. Lubricate O-rings and install into groove using petroleum jelly to hold in place. Push O-ring into the groove with plenty of petroleum jelly so O-ring is not displaced during assembly.

Index angle fittings and tighten by hand pressing joint together to insure O-ring remains in place. Tighten fitting or nut to torque value shown on the chart per dash size stamped on the fitting. Do not allow hoses to twist when tightening fittings. Put hydraulic oil or petroleum jelly on the O-ring. Place electrical tape over the threads to protect Oring from nicks. Slide O-ring over the tape and into the groove of fitting.

Remove tape. For angle fittings, loosen special nut and push special washer against threads so O-ring can be installed into the groove of fitting. Turn fitting into the boss by hand until special washer or washer face straight fitting contacts boss face and O-ring is squeezed into its seat. To position angle fittings, turn the fitting counterclockwise a maximum of one turn.

Tighten straight fittings to torque value shown on chart. For angle fittings, tighten the special nut to value shown in the chart while holding body of fitting with a wrench.

To be used if a torque wrench cannot be used. After tightening fitting by hand, put a mark on nut or boss; then tighten special nut or straight fitting the number of flats shown. Older tractors that were designed for leaded fuel may see some accelerated valve and seat wear. Keep gasoline stored in a safe, protected area. DO NOT use de-icers to attempt to remove water from gasoline or depend on fuel filters to remove water from gasoline.

Use a water separator installed in the storage tank outlet. When storing unit or gasoline, it is recommended that you add John Deere Gasoline Conditioner and Stabilizer TY or an equivalent to the gasoline. If diesel fuel being used has a sulfur content greater than 0. Consult your local diesel fuel distributor for properties of the diesel fuel available in your area.

If fuel contains water, a zinc gel will also form. The gel and flakes will quickly plug fuel filters and damage fuel injectors and fuel pumps. This will help prevent any accidental sparks from occurring. Store fuel in an area that is well ventilated to prevent possible igniting of fumes by an open flame or spark, this includes any appliance with a pilot light.

DO NOT use deicers to attempt to remove water from fuel. DO NOT depend on fuel filters to remove water from fuel. It is recommended that a water separator be installed in the storage tank outlet. California Proposition 65 Warning: Diesel engine exhaust and some of its elements from this product are known to the State of California to cause cancer, birth defects, or other reproductive harm. The following John Deere oils are also recommended, based on their specified temperature range:.

Use the appropriate oil viscosity based on the expected air temperature range during the period between recommended oil changes. Operating outside of these recommended oil air temperature ranges may cause premature engine failure. Engine rebuild instructions should be followed closely to determine if special requirements are necessary.

DO NOT mix any other oils in this transmission. Use the appropriate oil viscosity based on these air temperature ranges. Operating outside of these recommended oil air temperature ranges may cause premature hydrostatic transmission or hydraulic system failures.

DO NOT mix any other oils in this gear case. Use the appropriate oil viscosity based on the air temperature ranges. Operating outside of these recommended oil air temperature ranges may cause premature gear case failure.

Other gear case oils may be used if above recommended John Deere gear case oils are not available, provided they meet the following specification:. Use the following gear grease based on the air temperature range. Operating outside of the recommended grease air temperature range may cause premature gear transmission failure. DO NOT mix any other greases in this transmission. Other greases may be used if above preferred John Deere grease is not available, provided they meet the following specification:.

In general, avoid mixing different brands or types of lubricants. Manufacturers blend additives in their lubricants to meet certain specifications and performance requirements.

Mixing different lubricants can interfere with the proper functioning of these additives and lubricant properties which will downgrade their intended specified performance. If alternative lubricants are to be used, it is recommended that the factory fill be thoroughly removed before switching to any alternative lubricant. Avoid mixing different brands, grades, or types of oil. Oil manufacturers blend additives in their oils to meet certain specifications and performance requirements.

Mixing different oils can interfere with the proper functioning of these additives and degrade lubricant performance. Use clean storage containers to handle all lubricants. Store them in an area protected from dust, moisture, and other contamination. Store drums on their sides. Make sure all containers are properly marked as to their contents. Dispose of all old, used containers and their contents properly.

Always change filters regularly. Most John Deere filters contain pressure relief and anti-drainback valves for better engine protection. Read container label completely before using and follow instructions as stated. Water used to dilute engine coolant concentrate must be of high quality—clean, clear, potable water low in chloride and hardness—Table 1 is generally acceptable.

DO NOT use salt water. Deionized or distilled water is ideal to use. Coolant that is not mixed to these specified levels and water purity can cause excessive scale, sludge deposits, and increased corrosion potential. Mix 50 percent anti-freeze concentrate with 50 percent distilled or deionized water.

Certain geographical areas may require lower air temperature protection. See the label on your antifreeze container or consult your John Deere dealer to obtain the latest information and recommendations. When using John Deere Concentrate TY Automobile and Light Duty Engine Service coolants, drain and flush the cooling system and refill with fresh coolant mixture every 24 months or 2, hours of operation, whichever comes first.

The digit product identification number is located on the right-hand side frame, just below engine compartment. The engine serial number is located on valve cover. The model number will designate the engine type. Intake and Exhaust Valve Adjustment Interval. Drain Screw Torque. Choke and Throttle Plate Screws Torque. Air Horn Mounting Screws Torque. Throttle Plate Screws Torque. Mounting Stud Nuts Torque. Maximum Crankcase ID. Crankcase Oil Capacity.

Drain Plug Torque. Breather Reed Valve Clearance. Pressure Relief Plug Torque. Cylinder Head and Valves Valve Clearance. Maximum Bearing ID. Adjuster Screw Lock Nut Torque. Push Rod Maximum Bend. Spring Free Length. Maximum Valve Guide ID. Maximum Valve Stem Bend. Standard Valve Seating Surface. Valve Seating Width Tolerance. Valve Seat and Face Angle. Valve Narrowing Angle. Cylinder Head Cylinder Head Flatness. Final Torque. Spark Plug Torque. Flywheel Flywheel Nut Torque. Fan Belt Tension Adjustment Increase.

Remove shim s Decrease. Minimum Lobe OD Intake. Minimum Lobe OD Exhaust. Minimum Fuel Pump Lobe. Maximum Second Ring Groove Clearance.

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