Jd D170 Service Manual
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Service 48 & 54 Inch Mower Deck
Avoid Injury From Contacting Blades
MIF
| c CAUTION: Avoid injury! To avoid injury, before you clean, adjust, or service mower: · STOP the engine. · LOCK the park brake. · DISENGAGE PTO to stop mower blades. · Remove the key. · Wait for mower blades to STOP. · Keep hands, feet and clothing away from mower deck when engine is running. · DISENGAGE PTO to stop mower blades when mower deck is raised. |
Grease
Use the following grease based on the air temperature range. Operating outside of the recommended grease air temperature range may cause premature failures.
IMPORTANT: Avoid damage! ONLY use a quality grease in this application. DO NOT mix any other greases in this application. DO NOT use any BIO-GREASE in this application. |
The following John Deere grease is preferred:
· TY6341 Multi-Purpose Super Duty High-Temperature EP POLYUREA Grease. NLGI Grade 2.
Other greases may be used if above preferred John Deere grease is not available, provided they meet the following specification:
· John Deere Standard JDM J13E4, NLGI Grade 2.
M58275
Mower Deck Gearbox Oil
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.
IMPORTANT: Avoid damage! ONLY use a quality oil in this gear case. DO NOT mix any other oils in this gear case. DO NOT use BIO-HY-GARD® in this gear case. |
The following John Deere gear case oil is PREFERRED:
· GL-5 GEAR LUBRICANT®-SAE 80W-90.
The following John Deere gear case oil is also recommended if above preferred oil is not available:
· GL-5 GEAR LUBRICANT®-SAE 85W-140.
Other gear case oils may be used if above recommended John Deere gear case oils are not available, provided they meet the following specification:
· API Service Classification GL-5.
M58275
Checking The Mower Gearbox Oil Level
1. Lower deck, stop the engine. Wait until the gearbox is cool.
2. Remove the check plug (A) from either side of the gearbox.
Windows terminal emulator serial port. M73427
3. Oil should drain from the plug hole.
4. If not, pour or squirt oil through the check plug hole until the oil runs out of the hole.
5. Install plug. Wipe up any spilled oil.
Checking The PTO Gearbox Oil Level
1. STOP the engine.
M73459
2. Lift the seat to the second position.
3. Remove the check plug (A). Oil should flow from the plug hole.
4. If not squirt oil through the check plug hole, OR remove the fill plug (B) and squirt oil through the fill plug hole.
Changing The Mower Deck Gearbox Oil
1. STOP the engine. Wait until the gearbox is cool.
2. Lift the seat platform to the highest position.
3. Remove the driveline coupler from the vehicle's PTO gearbox shaft.
4. Remove the three mower deck belt shields. Use a spring puller to remove the end of the mower belt tension spring from its bracket.
5. Remove the two cap screws (A) from in front of the gearbox.
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6. Remove the two bolts (B) and spacers from the rear of the gearbox.
7. Remove the gearbox and driveline from the belt and the mower.
8. Remove a check plug (C) from either side of the gearbox.
9. Turn the gearbox on it's side to drain it. After the oil has drained, turn the gearbox right side up.
M73445
10. Pour or squirt oil through the fill plug hole until the oil runs out of the check plug hole.
11. Install the plugs in the gearbox.
12. Install the gearbox on the mower. Install the belt on the gearbox sheave as you install the gearbox.
13. Tighten the cap screws and bolts to 70 N·m (50 lb-ft).
14. Connect the coupler to the vehicle gearbox shaft.
15. Use a spring puller to install the end of the spring in its bracket.
16. Install the belt shields.
17. Lower the seat.
Lubricating The Caster Wheel Bearings And Spindles
Lubricate the wheel bearings and spindle bushings on each front caster wheel assembly, using recommended John Deere Grease.
M73423
Lubricating The Mower Deck Spindles
Lubricate the three mower deck spindles using recommended John Deere Grease.
M56999
M57000
Lubricating The Gauge Wheel
Lubricate the gauge wheel axle using recommended John Deere Grease.
M73422
Lubricating The Crank Bushing
Lubricate the crank bushing grease fitting using recommended John Deere Grease.
M73424
Lubricating The Driveline U-joints And Spline
Lubricate the three grease fittings on the driveline using recommended John Deere Grease.
M73425
Removing And Installing The Belt Shields
| c CAUTION: Avoid injury! Do not operate the mower without the belt shields. If you put your hand or foot between the moving belt and a sheave, the belt and sheave can tear your hand or foot off. The moving belt and sheaves can also throw debris that could injure your eyes or other parts of your body. |
M73419
1. To remove the shields, open the three latches shown.
2. Remove the center shield first, then the other two shields.
3. Install the outer shields first, then the center shield.
Removing The Mower Belt
| c CAUTION: Avoid injury! Before you change belt, STOP engine. LOCK park brake. |
1. Remove the three belt shields.
2. Lower the mower all the way by turning the crank on the front of the mower.
3. Use a spring puller to remove the end of the spring (A) from the mower bracket.
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4. Loosen the two cap screws (B) in front of the gearbox several turns.
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5. Remove the two bolts (C) and the two spacers from the rear of the gearbox.
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6. Use a bar to lift and hold up the rear of the gearbox.
7. Remove the belt from under the gearbox. Lower the gearbox.
8. Remove the belt from the other sheaves and discard it.
Installing Mower Belt
To install a new belt:
M57013
1. Use a bar to lift and hold up the rear of the gearbox.
2. Install the new belt on the sheave that is under the gearbox.
3. Lower the gearbox.
4. Use the picture at the right to help you install the belt on the other sheaves. Do not twist the belt.
5. Install the two bolts and spacers (A) at the rear of the gearbox.
M73386
6. Tighten the two bolts to 70 N·m (50 lb-ft).
7. Tighten the two cap screws (B) in front of the gearbox.
M73386
8. Use a spring puller to install the end of the spring (C) in the bracket.
M73341
9. Install the three belt shields.
Checking The Blades
| c CAUTION: Avoid injury! The blades may be sharp. To help prevent injury when you handle the blades, wear heavy gloves orwrap the end of the blade with a rag. |
To check and remove a blade:
M73456
1. Put blocks in front of the mower.
2. Start the engine.
3. Pull up the attachment lift lever to raise the mower deck as high as it will go.
4. Hold the lift lever up and drive the Front Mower slowly forward until you can lower the deck onto the blocks.
5. Release the Lift Lever to lower the mower onto the blocks.
6. Stop the engine. Lock the park brake.
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| c CAUTION: Avoid injury! Do not work under a raised mower unless it is safely supported. |
7. Check the blades for damage and sharpness.
8. Replace blade(s) if damaged.
9. Sharpen dull blade(s). See 'Sharpening Blades' in this section.
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10. To remove a blade, turn the bolt (A) counterclockwise.
Replacing The Rollers
1. Turn the crank to raise the mower as high as it will go.
M73436
2. Remove the lock nut (A).
3. Pull the shaft out and remove the roller.
4. Install the new roller on the shaft.
5. Install and tighten the lock nut.
Sharpening Blades
| c CAUTION: Avoid injury! The blades may be sharp. To help prevent injury when you handle the blades, wear heavy gloves or wrap the end of the blade with a rag. Always wear gloves and goggles when sharpening, balancing or installing mower blades. |
1. Sharpen blades with grinder, hand file or electric blade sharpener.
MIF
2. Keep original bevel (A) when you grind. Blade should have 0.40 mm (1/64 in.) cutting edge (B).
3. Balance the blade. (See 'Balancing And Installing The Blades' in this section.)
Balancing And Installing The Blades
| c CAUTION: Avoid injury! The blades may be sharp. To help prevent injury when you handle the blades, wear heavy gloves or wrap the end of the blade with a rag. |
IMPORTANT: Avoid damage! If you do not balance a blade, it may vibrate too much. |
1. To balance a blade:
· Clean the blade.
· Put the blade on a nail in a vise or wall. The heavy end of the blade will drop. Grind the bevel of the heavy end. Do not change the bevel.
2. Fasten blades with washers and bolts. The cup-side of the washer must be against the blade. Tighten bolts to 68-75 N·m (45-55 lb-ft).
M61524
Troubleshooting
Using Troubleshooting Chart
If you are experiencing a problem that is not listed in this chart, see your John Deere dealer for service.
When you have checked all the possible causes listed and you are still experiencing the problem, see your John Deere dealer.
Engine
If | Check |
|---|---|
Poor Engine Performance | Fuel:· Dirt in fuel system or fuel is old. Replace fuel with fresh stabilized fuel. Obtain fuel from another supplier before suspecting machine problems. Suppliers blend fuels differently and changing suppliers will generally solve any performance problems · Fuel blended with alcohol or ether may contribute to performance problems by causing gum and varnish deposits, especially if fuel is stored for several weeks or more. Obtain fresh fuel. |
Engine Will Not Start | · Brake pedal not depressed. · Mower Engagement Lever is in ENGAGED position. · Spark plug wire is loose or disconnected. · Improper fuel. · Plugged fuel filter. · Electrical problem - See Electrical Troubleshooting Section |
Engine Is Hard To Start | · Carburetor is not adjusted properly or dirty. · Plugged fuel filter. · Choke adjusted incorrectly. · Faulty spark plug. · Stale or improper fuel. · Loose or corroded electrical connections. · Engine oil viscosity. |
Engine Runs Unevenly | · Cooling fins plugged. · Loose electrical connections. · Choke or throttle cable sticking. · Fuel line or fuel filter plugged. · Stale or dirty fuel. · Improper fuel. · Air cleaner element plugged. |
Engine Misses Under Load | · Faulty spark plug. · Stale or dirty fuel. · Plugged fuel filter. |
Engine Vapor Locks | · Fuel tank vent plugged. · Dirt in fuel filter. · Cooling fins plugged. |
Engine Overheats | · Engine air intake screen plugged. · Cooling fins plugged. · Engine oil low or too high. · Engine operated too long at a slow idle speed. |
Engine Will Not Idle | · Spark plug not gapped correctly. · Faulty spark plug. · Operator raising off the seat. |
Engine Knocks | · Stale or low octane fuel. · Engine overloaded. · Low engine speed. |
Engine Stops Or Misses When Operating On Hillsides | · Fuel tank less than half full of fuel. · Operator raising off of the seat. |
Engine Backfires | · Faulty spark plug. · Operator raising off of the seat. |
Engine Loses Power | · Engine overheating. · Too much oil in engine. · Dirty air cleaner. · Faulty spark plug. · Travel speed is too fast for conditions. · Improper fuel. |
Engine Stops When REVERSE foot pedal is depressed and Attachment Is Engaged (Hydrostatic) | · Normal condition. (See Using Reverse Implement Option in the OPERATING section.) |
Engine Stops When gear shift lever is moved to the R (REVERSE) position and Attachment Is Engaged (Gear) | · Normal condition. (See Using Reverse Implement Option in the OPERATING section.) |
Excessive Fuel Consumption | · Choke is not fully open. (Not available on all models.) |
Black Exhaust Smoke | · Air filter is dirty or oil soaked. |
Transmission
If | Check |
|---|---|
Transmission problems are suspected | · The transmission is a sealed component. See your John Deere dealer for maintenance. |
Electrical
If | Check |
|---|---|
Starter Does Not Work Or Will Not Turn Engine | · Brake pedal is not depressed. · Mower Engagement Lever is in ENGAGED position. · Battery terminals are corroded. · Battery not charged. · Fusible Link in starting circuit is blown - See your John Deere Dealer |
Battery Will Not Charge | · Dead cell in the battery. · Battery cables and terminals are dirty. · Low engine speed or excessive idling. |
Lights Do Not Work | · Light plug disconnected. · Loose or burned out bulb. |
Tractor
If | Check |
|---|---|
Tractor Vibrates Too Much or Rattles Excessively | · Attachment drive belts worn or damaged. · Traction drive belt damaged or worn. |
Tractor Will Not Move With Engine Running | · Parking brake locked. · Traction drive belt needs adjustment. (See your John Deere dealer.) · Free-wheeling lever not pushed in completely. (Not available on all models.) |
Mower
If | Check |
|---|---|
Discharge Chute Plugged | · Belt installed incorrectly. · Grass too wet. · Grass too long. · Engine should be at full throttle. · Rear of deck too low. |
Patches Of Grass Uncut | · Travel speed too fast. · Engine should be at full throttle. · Dull blades. · Cutting height set too high. · Freedom42: Blades should be assembled on correct spindle, (left or right identification). |
Belt Slipping | · Debris in sheaves. · Worn belt. · Mower blade engagement rod needs adjustment. |
Mower Blades Do Not Stop | · Belt routed incorrectly. · Mower blade engagement rod needs adjustment. · Spindle brake needs adjustment. |
Too Much Vibration | · Debris on mower deck or in sheaves. · Damaged drive belt. · Damaged sheaves or sheaves out of alignment. · Blades out of balance. |
Mower Makes Unusual Noise | · Freedom42: Check blade timing and adjust timing belt tension if necessary. |
Uneven Cut | · Check procedures on Adjusting Mower Level Side-to-Side and Front-to-Rear. · Travel speed too fast. · Blades are dull. · Check tire pressure. · Adjust mower wheels. · Freedom42: Blades should be assembled on correct spindle, (left or right identification). |
Blades Scalping Grass | · Turning speed too fast. · Ridges in terrain. · Rough or uneven terrain. · Low tire pressure. · Cutting too low. · Bent blade(s). · Adjust mower wheels. |
Mower Loads Down Tractor | · Engine should be at full throttle. · Travel speed too fast. · Debris wrapped around mower spindles. · Check procedure on Adjusting Mower Level Front-to-Rear. · Grass conditions. · Cutting height set too low. |
Uneven Clipping Distribution | · Cutting height set too low. · Mowing too fast. · Grass too wet. · Freedom42: Blades should be assembled on correct spindle, (left or right identification). |
Mower (or other attachment) Stops When REVERSE foot pedal is depressed and Attachment Is Engaged (Hydrostatic) | · Normal condition. (See Using Reverse Implement Position in the OPERATING Section.) |
Mower (or other attachment) Stops When gear shift lever is moved to the R (REVERSE) position and Attachment Is Engaged (Gear) | · Normal condition. (See Using Reverse Implement Option in the OPERATING section.) |
- суббота 11 апреля
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