Installing

Attaching Backhoe To Tractor

c CAUTION: Avoid injury! Operator must be seated in tractor seat when positioning tractor for backhoe installation.

1. Review instructions on using rockshaft control lever included in your tractor operator’s manual.

2. Lock folding ROPS in full upright position.

3. Close and lock cab rear window.

MX17776

Picture Note: Tires and fenders removed.

4. Fully lower tractor rockshaft arms (A). Align rockshaft pins (B) with hooks (C) on backhoe, and back tractor into position.

5. Check to be sure backhoe hydraulic hoses are clear of backhoe hooks and hardware.


IMPORTANT: Avoid damage! During this setup procedure the operator may note the hydraulic system is going over relief when the backhoe is lifted all the way up. To prevent excessive heat buildup in the hydraulic system and/or hydraulic pump damage, the operator should not allow the hydraulic system to go over relief for more than 10 seconds at a time. When checking for proper L-pin clearance, the operator can lift the backhoe until the hydraulics hit relief pressure, then stop the tractor engine. This will prevent damage to the tractor hydraulics and allow more time for checking for proper backhoe mounting.

MX17782

Picture Note: Tires and fenders removed.

6. Slowly lift rockshaft arms, making sure pins engage into hooks on backhoe. Check to be sure both lower pins (D) on backhoe engage both hooks (E) on tractor RSA mounting plates.

MX32497

Picture Note: Tractor seat removed.

7. Fully raise rockshaft arms so stop (F) is against edge of RSA mounting plates.

MX32498

8. Install L-pins (G) in backhoe and RSA mounting plates. If backhoe and RSA mounting plates do not align, and L-pins do not slide in and out easily, lower backhoe to ground and adjust movable latch plates (H). Left and right movable latch plates may need different adjustment.


IMPORTANT: Avoid damage! In some cases the rockshaft may not lift the backhoe high enough to install the L-pins. If this occurs, the linkage which connects the rockshaft to the rockshaft control valve needs to be adjusted. See your John Deere dealer for rockshaft position adjustment.

9. Install hitch pins in L-pins.

10. Park tractor safely.

11. Lower the rockshaft to transfer weight of backhoe from rockshaft arms to L-pins.

Routing Hydraulic Hoses (485)

M64118

1. Position drain pan and remove male coupler (A) from 90° elbow on backhoe pressure hose.

MX20638

2. Route backhoe pressure hose (B) up through backhoe right side.

3. Install male coupler back on 90° elbow.

4. Route backhoe return hose (C) up through backhoe left side. It may be necessary to remove the female coupler to allow the hose to fit.

Connecting Hydraulic Hoses

1. Stop engine and park tractor safely with L-pins installed in backhoe.

2. Cycle the rockshaft control lever to relieve all pressure on rockshaft.

MX17785

Picture Note: Large chassis tractor no cab.

MX17786

Picture Note: Mid chassis tractor no cab..

3. Disconnect Power Beyond hose (A) from female coupler (B). Install dust cap (C) on hose, and lay hose aside on backhoe frame.

4. Connect backhoe return hose with female coupler to fitting (D).

5. Connect backhoe pressure hose with male coupler to female coupler (B).

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