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Operating Backhoe


Backhoe Operator Station


MX13927

A - Auxiliary Hydraulics Foot Pedal (Optional)

B - Boom Control and Swing Lever

C - Boom Lock

D - Swing Lock

E - Dipperstick and Bucket Lever

F - Left Stabilizer Lever

G - Right Stabilizer Lever

Installing and Removing Backhoe

Installing Backhoe

IMPORTANT: Avoid damage! Failure to remove drawbar from machine will result in damage to machine, backhoe, or both.


1. Remove 3-point hitch and drawbar if installed on machine.

2. Lower rockshaft fully.

3. Start engine.

4. Unlock park brake.

5. Back machine into position to install backhoe.

6. Lock park brake.

7. Stop engine. Operator seat should remain facing to the front.

8. Remove retaining pins and attaching pins stored in the backhoe subframe.

IMPORTANT: Avoid damage! To prevent backhoe seal and valve damage, engine must be stopped when connecting hydraulic quick-couplers.

Always connect the hydraulic return hose first.



MX13935

9. Connect hydraulic hose (A) from the backhoe to machine quick coupler (B).

10. Connect hydraulic hose (C) from the machine to backhoe quick coupler (D).

11. Unlock park brake.

c CAUTION: Avoid injury!

Do not operate controls from the ground when installing the attachment. Operator must be positioned on the operator seat.

Keep hands and feet away from mounting location when installing attachment.

Practice becoming proficient and comfortable with the operation of the attachment controls. Move control levers slowly for safe operation.

Keep bystanders away from the machine when installing the attachment.

12. Kneel on operator seat.

13. Start engine.


MX13937, MX15496, MX15498

14. Push both stabilizer levers (E) slowly forward to extend stabilizers (F) evenly and raise the backhoe subframe.

IMPORTANT: Avoid damage! Watch hydraulic hoses for pinching and binding while backhoe attachment is being mounted on the machine. Stop procedure and reposition hoses as needed.


NOTE: When using the repositioning creeper drive speed control, the machine will not move if operator is not positioned on the seat. The machine will stop if operator vacates the seat while machine is in motion.

15. Slowly move machine rearward using the repositioning creeper drive speed control lever. The backhoe subframe mounting pins (G) must be aligned directly above the machine mounting hooks (H).

16. Pull both stabilizer levers slowly rearward to retract each stabilizer evenly and pins (G) engage hooks (H).


MX13936

17. Slowly lower backhoe boom to rotate top of subframe forward. Each side of the subframe must engage mounting yokes (I) at the rear of the machine. Continue to lower boom until the rear wheels of the machine are just off the ground and mounting holes are fully aligned.

18. Install attaching pins (J).

19. Install retaining pins (K).


MX15495

20. Fully retract boom and engage boom lock (L).

21. Fully retract dipperstick and curl bucket.

22. Fully retract stabilizers.

Removing Backhoe

1. Park machine on a hard/ level surface.

2. Lock park brake. Operator seat should remain facing to the front.

3. Kneel on operator seat.

4. Disengage boom lock.


MX13931

5. Extend stabilizers (A) approximately 10 - 15 cm (4 - 6 in.) above the ground.

6. Extend boom and dipperstick slightly. Lower boom to release pressure on attaching pins.


MX13936

7. Remove retaining pins (B).

8. Remove attaching pins (C).


MX13937, MX15496, MX15498

9. Raise boom slowly to rotate top of backhoe subframe (D) away from machine.

10. Install attaching and retaining pins into backhoe subframe for storage.

11. Extend stabilizers evenly to lift subframe pins (E) out of mounting hooks (F).

12. Unlock park brake.

IMPORTANT: Avoid damage! Watch hydraulic hoses for pinching and binding while backhoe attachment is being removed from the machine. Stop procedure and reposition hoses as needed.


NOTE: When using the repositioning creeper drive speed control, the machine will not move if operator is not positioned on the seat. The machine will stop if operator vacates the seat while machine is in motion.

13. Move machine forward slightly using the repositioning creeper drive speed control lever. The backhoe subframe mounting pins must clear the machine mounting hooks.

14. Lock park brake.

15. Retract stabilizers slowly and evenly to lower backhoe to ground.

IMPORTANT: Avoid damage! To prevent backhoe seal and valve damage, engine must be stopped when disconnecting the hydraulic quick-couplers.


16. Stop engine.

IMPORTANT: Avoid damage! To prevent contamination of quick couplers, hose ends should be connected when not being used.



MX13935

17. Disconnect hydraulic hoses (G) and (H).

Connect machine hydraulic hose (G) to machine quick coupler (I).

Connect backhoe hydraulic hose (H) to backhoe quick coupler (J).

18. Start engine.

19. Drive slowly away.

Using Backhoe Swing Frame Lock

Swing Lock

1. Operator positioned on operator seat.

2. Start engine.


MX15494

3. Move boom control lever (A) left or right to align lock pin holes.

4. Remove lock pin (B) from storage holder (C) and install in lock hole.

Swing Unlock

1. Move boom control lever (A) slightly left or right to relieve pressure on lock pin (B).

2. Remove lock pin from lock hole and store in holder (C).

Using Backhoe Boom Lock

Boom Lock

1. Operator positioned on operator seat.

2. Start engine.


MX15495

3. Pull boom control lever (A) rearward to fully raise boom.

4. Squeeze boom lock handles (B) together to disengage lock mechanism latch.

5. Pull back on handles to engage lock.

Boom Unlock

1. Pull boom control lever (A) rearward to raise boom and relieve pressure on lock mechanism.

2. Squeeze boom lock handles (B) together to disengage lock mechanism latch.

3. Push handles forward to disengage lock.

Using Backhoe Operating Controls

c CAUTION: Avoid injury!

Do not operate attachment controls from the ground. Operator must be positioned on the operator seat.

Practice becoming proficient and comfortable with the operation of the attachment controls. Move control levers and pedals slowly for safe operation.

Keep bystanders away from the machine when operating the attachment.

IMPORTANT: Avoid damage! When operating the backhoe and performing a boom swing function, be careful not to swing boom into stabilizers.



MX13927

Left Stabilizer Lever - Push lever (A) forward to extend the left stabilizer. Pull lever (A) rearward to retract the left stabilizer. Function speed will increase the more the lever is moved forward or rearward. The lever will automatically return to the centered neutral position when released.
Right Stabilizer Lever - Push lever (B) forward to extend the right stabilizer. Pull lever (B) rearward to retract the right stabilizer. Function speed will increase the more the lever is moved forward or rearward. The lever will automatically return to the centered neutral position when released.
Boom Control and Swing Lever - Move lever (C) forward to lower the boom. Move lever (C) rearward to raise the boom. Move lever (C) left to swing boom to the left. Move lever (C) right to swing boom to the right. Function speed will increase the more the lever is moved forward and rearward or side-to-side. The lever will automatically return to the centered neutral position when released.
Dipperstick and Bucket Control Lever - Move lever (D) forward to extend the dipperstick. Move lever (D) rearward to retract the dipperstick. Move lever (D) to the left to curl the bucket. Move lever (D) to the right to dump the bucket. Function speed will increase the more the lever is moved forward or rearward. The lever will automatically return to the centered neutral position when released.

MX18707

Picture Note: Late model backhoe shown. Auxiliary hydraulic quick couplers are located on the dipperstick for early models.

NOTE: The auxiliary hydraulic pressure relief is initially set at 2500 psi. Refer to the attachment operator's manual for attachment operating pressure. See your John Deere dealer if adjustment is required.

Auxiliary Hydraulic Foot Control Pedal (Optional) - Auxiliary hydraulic quick couplers (E) and (F) are mounted on each side of the dipperstick. Depress front of pedal (G) to divert hydraulic fluid out of quick coupler (F) and return fluid through quick coupler (E). Depress rear of pedal (G) to divert hydraulic fluid out quick coupler (E) and return fluid through quick coupler (F). Function speed will increase the more the pedal is depressed. The pedal will automatically return to the centered neutral position when released.

Preparing to Operate Backhoe

1. Back machine close to desired digging location on a hard, level surface.

2. Lock park brake.

3. Lower loader and boom to the ground until front tires are off ground.

4. Pivot and lock operator seat into position facing to the rear.

5. Lower stabilizers until rear tires are off ground and machine is level.

6. Remove swing lock pin and store in holder.

7. Unlock boom lock.

8. Check control lever response.

Positioning Spoil Piles


T104828

To prevent cave-ins, place spoil pile at least 1m (3 ft) away from edge of excavation. Deeper excavations require larger area for spoil pile. Place spoil piles in convenient locations for easier truck loading or backfilling.

On slopes, place piles on upper side for improved machine stability and easier backfilling.

Leveling Machine

c CAUTION: Avoid injury!

Prevent unexpected machine movement. Stabilizers must be lowered onto a hard, level surface. Do not dig under stabilizers. Be alert to possible machine movement when raising the stabilizers and loader bucket.

Keep both feet on subframe platform and away from stabilizers when operating attachment.

Do not operate attachment controls from the ground. Operator must be positioned on the operator seat.

1. Position machine on a hard, level surface when operating the backhoe.

2. Level work area as necessary.

NOTE: When stabilizers are lowered to level machine, they may not be extended the same length due to variations in surface.


T104828

3. Extend stabilizers until rear tires are off the ground with minimum clearance between tires and ground.

4. If machine is not level, continue to extend the down slope stabilizer until machine is level side-to-side.


T104823

5. With front bucket in dig position, lower until weight of machine is off front tires. Add material in bucket for additional counterweight if needed, especially if backhoe is facing downslope.


T104824

6. Position loader in dump position only when loader bucket is lowered level to the ground and will not hold machine steady.

Using Backhoe Bucket

Use type of digging which is best suited for your specific job.

Crowd Digging

T104826

For most general excavating, leveling material, and digging trenches.

Crowd digging utilizes the dipperstick cylinder (A) for majority of movement.

1. Position dipperstick in vertical position (B).

2. Extend dipperstick and extend bucket simultaneously approximately 0.61 m (2 ft) (C) away from machine.

3. Retract dipperstick and curl bucket simultaneously back to vertical (B), to make first cut. First cut should be approximately 1.2 m (4 ft) long and 75 - 100 mm (3 - 4 in.) deep.

4. Repeat steps 1 and 3 for remaining cuts and increase depth to 100 - 150 mm (4 - 6 in.) deep.

Bucket Digging

T104827

For power digging or working in small areas.

Uses bucket cylinder (A) for digging.

1. Extend bucket and dipperstick to dig point.

2. Lower bucket into digging area using boom to force bucket into ground.

3. Retract dipperstick and curl bucket simultaneously until bucket is full.

If bucket stalls, raise the boom slightly and continue to curl bucket.

If dipperstick stalls, roll back bucket then raise boom slightly to break out.

Using a Sight Gauge for Trenching


T102503

Drive two stakes in ground, 9 m (30 ft) apart (A), in line with desired trench location. Use stakes as a sight gauge. Use of a sight gauge is recommended especially if machine is moved off course often.

Trenching


T7208AL

Trenches should be dug with walls angled outward to prevent cave-ins.

c CAUTION: Avoid injury! Do not drive over trench. Machine may slip into trench or cause a cave-in which may result in overturning or burial of machine.


T104829

If cave-in occurs and cannot be reached from current position, drive machine to side of cave-in, and park at a 90angle to trench.

Operating Dipperstick with Attachments

Operating hydraulic attachments such as hammers or compactors with dipperstick extended may cause abnormal wear and stress on dipperstick components and ultimately shorten their life. When operating these types of attachments, keep dipperstick as close to vertical as possible.

Installing and Removing Backhoe Attachment with Standard Pin-On System

Installing Attachment


MX15497

1. Remove cotter pins (A), washers (B) and pin fasteners (C) stored in dipperstick arm.

2. Lower boom to align dipperstick arm mounting holes and attachment mounting holes.

3. Install pin fasteners (C) through attachment and dipperstick arm mounting holes. Secure each side of attachment with washers (B) and cotter pins (A).

Removing Attachment

1. Lower attachment onto a hard, level surface.

2. Remove cotter pins (A), washers (B) and pin fasteners (C).

3. Slowly raise boom.

4. Install pin fasteners, washers and cotter pins in dipperstick arm mounting holes for storage.

Installing and Removing Backhoe Attachment with Optional Quick Attach System

Installing Attachment

1. Align dipperstick arm with attachment to be installed.


MX13929

Picture Note: Bucket attachment shown.

2. Begin sliding boom pin (A) into attachment mounting groove (B). Extend the bucket cylinder (bucket curl) to lower boom wedge (C) into slot (D).


MX15499, MX13928

Picture Note: Bucket attachment shown.

3. Install wedge bar (E), lynch pins (F), and wedge bar bolt (G).

c CAUTION: Avoid injury! Do not operate attachment without wedge bar bolt tightened to 135.5 Nm (100 lb-ft) and lynch pins inserted into wedge bar pins. Failure to follow these instructions may cause attachment to come off.

4. Tighten wedge bar bolt (G) to 135.5 Nm (100 lb-ft).

Removing Attachment

1. Park machine safely. (See Parking Safely in the SAFETY section.)

2. Position bucket flat on ground.

c CAUTION: Avoid injury! Do not remove lynch pins until the wedge bar bolt has been loosened and pressure relieved from wedge bar.

3. Loosen wedge bar bolt (G) eight to ten turns.

4. Loosen wedge bar (E) with a pry bar.

5. Remove wedge bar bolt (G), lynch pins (F), and wedge bar (E).

6. Retract bucket cylinder to release mounting wedge (C) from slot (D).

7. Retract dipperstick to release boom pin (A) from mounting groove (B).

Using Backhoe Stabilizer Feet


MX13939, MX13940

1. Rotate foot (A) past roller (B) to use flat side (C) of stabilizer foot when operating on hard surfaces.

2. Rotate foot (A) past roller (B) to use flat side of stabilizer foot equipped with optional foot pads (D). Foot pads provide additional protection when operating on hard surfaces.

3. Rotate foot (A) past roller (B) to use cleat side (E) of stabilizer foot when operating in dirt.

Installing Backhoe Stabilizer Rubber Foot Pads (Optional)

1. Raise both backhoe stabilizers.

2. Park machine safely. (See Parking Safely in the SAFETY section.)


MX13941, MX13927

3. Rotate each stabilizer foot (A) past roller (B) to expose flat side of each foot.

4. Align foot pad mounting studs (C) and stabilizer foot mounting holes.

5. Fasten pads (D) to stabilizer feet with flat washers and 3/8 in. hex nuts (E).