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Service


Service Intervals

Before Each Use

• Lubricate discharge chute

Every 25 Hours

• Check and clean auger gearbox vent hole

• Check auger gearbox oil level

• Check snowblower gearbox oil level

• Lubricate gearbox shaft

• Lubricate driveshaft

• Lubricate auger shaft

Grease

IMPORTANT: Avoid damage! Use recommended John Deere greases to avoid component failure and premature wear.

The recommended John Deere greases are effective within an average air temperature range of -29 to 135 degrees C (-20 to 275 degrees F).

If operating outside that temperature range, contact your Servicing dealer for a special-use grease.


The following greases are preferred:

• John Deere Multi-Purpose SD Polyurea Grease

• John Deere Multi-Purpose HD Lithium Complex Grease

If not using any of the preferred greases, be sure to use a general all-purpose grease with an NLGI grade No.2 rating.

Wet or high speed conditions may require use of a special-use grease. Contact your Servicing dealer for information.

Gear Oil

Use 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.

Checking Auger Gearbox Oil Level

1. Park tractor safely. (See Parking Safely in SAFETY Section of tractor operator’s manual.)


M95851a

2. Remove check plug (A).

IMPORTANT: Avoid damage! Check cross hole vent in fill plug when checking oil level. Vent hole must be clear of obstructions or pressure will build in gearbox and cause gearbox to leak.


3. Oil should be level with check plug hole.

4. Remove fill plug (B), if oil is low.

5. Add recommended gear oil.

6. Install and tighten fill plug and check plug.

Checking Snowblower Gearbox Oil Level

1. Park tractor safely. (See Parking Safely in SAFETY Section of tractor operator’s manual.)


MX22540

2. Remove one of the check plugs (A).

3. Oil should be level with hole.

4. Add recommended gear oil as needed.

5. Install and tighten plug.

Lubricating

1. Park tractor safely. (See Parking Safely in SAFETY Section of tractor operator’s manual.)

2. Lubricate grease fittings with recommended grease:

Gearbox Driveshaft

IMPORTANT: Avoid damage! Do not over-lubricate or you may damage seal.


MX6975

Lubricate fitting (A) with one or two shots of grease.

Auger Shaft

MX6976

Lubricate fittings(A) with grease. Apply grease until it just comes out of auger shafts (B) at gearbox.

Discharge Chute and Cable Pulleys

• Apply grease under chute before every use.

• Apply light grease to cable pulleys.

Driveshaft

• Lubricate all U-joint fittings with one or two shots of grease.


M94619

• Lubricate inner shaft (A) with grease. Extend and compress driveshaft several times to distribute grease.

Replacing Shear Bolt


MX6962

NOTE: A shear bolt (A) is installed in each end of auger shaft. The shear bolt will break if attachment hits a solid object. This will protect the auger and attachment from serious damage.

1. If you hit a solid object, stop attachment immediately.

2. Stop engine. Lock park brake. Lower attachment.

3. Find and correct cause for shearing.


M39138

4. Remove shear bolt (B) stored in auger housing.

5. Install new shear bolt.

Replacing Discharge Chute Cable

1. Start engine.

2. Turn chute completly to left. Hydraulic cylinder should be completely retracted.

3. Park tractor safely. (See Parking Safely in SAFETY Section of tractor operator’s manual.)


MX6971

4. Remove two stop nuts, washers (A), and cable shield (B). Remove two washers from threaded studs.


MX6973

5. Loosen capscrews (C).

6. Disconnect cable ends from chute.


M31572

7. Remove nut (D), bolt and washers (E).

8. Remove cable ends (F) and (G) from pulleys. Remove cable assembly.

9. Install new cable so longer cable end (F) is to the left and shorter cable end (G) is to the right.

10. Install bolt and washers (E) in cable assembly eyelet. Install nut (D).


M93915

11. Move chute so tab (H) on chute is in line with edge of capscrew (I). Chute opening will be on the left.


M93914

12. Route left cable:

a. Around top left pulley.

b. Around top center pulley.

c. Around bottom left pulley.

d. Around chute.

e. Under notches.

f. Behind washer.

13. Use locking pliers to pull cable tight.

14. Tighten capscrew (J).


M93916

15. Route right cable (K):

a. Around top right pulley.

b. Around bottom center pulley.

c. Around bottom right pulley.

d. Around chute.

e. Under notches.

f. Behind washer.

16. Use locking pliers to pull cable tight.


M93917

17. Tighten capscrew (L).


M95846

18. Install a washer (M) on each cable shield bolt (N).

19. Install cable shield, two washers, and stop nuts.

Replacing Skid Shoes

1. Raise snowblower.

2. Put blocks under scraper blade on both sides of snowblower.

3. Lock park brake.

4. Stop engine and remove key.

5. Lower snowblower onto blocks.


MX6977

6. Remove nuts (A) and bolts from skid shoe.

NOTE: Both skid shoes must be installed in same position.

7. Install new skid shoe bolts and nuts.

Reversing or Replacing Scraper Blade

NOTE: Reverse the blade when one edge becomes worn, rough, or bent. If both edges are worn, rough, or bent, replace the blade.

1. Raise snowblower.

2. Put blocks under both sides of snowblower.

3. Lock park brake.

4. Stop engine and remove key.

5. Lower snowblower onto blocks.


MX6976

6. Remove eight nuts (A) and bolts.

7. Remove blade (B).

8. Rotate blade so rear edge of blade is at front.

9. Install blade with bolts and nuts.

Cleaning Gearbox Air Vent

1. Park tractor safely. (See Parking Safely in SAFETY Section of tractor operator’s manual.)

IMPORTANT: Avoid damage! Vent hole must be clear of obstructions or pressure will build in gearbox and cause gearbox to leak.



M95851a

2. Check vent hole (A) in fill plug to make sure it is not plugged with dirt or debris.

3. Clean the vent hole periodically to remove dirt.

• Remove the fill plug and clean vent hole with solvent if needed.