Attach Loader—520M Loaders

CAUTION:

W27979
W27979-UN-26MAY17

A - Pin (1 each side)

B - Saddle (1 each side)

Prevent bodily injury. DO NOT allow bystanders nearby while attaching the loader. Allow only the tractor operator to attach the loader.

IMPORTANT: Prevent possible hydraulic hose damage. Make sure that the loader hydraulic hoses do not interfere with the tractor when attaching the loader.

  1. Center the tractor between the loader masts, stopping when both mounting frame saddles (B) are positioned under pins (A) on the loader masts.

  2. CAUTION:

    X9811
    X9811-UN-23AUG88

    Escaping fluid under pressure can penetrate the skin causing serious injury. Avoid the hazard by relieving pressure before connecting hydraulic or other lines. Protect hands and body from high-pressure fluids. See additional information, Avoid High-Pressure Fluids in Safety section.

    Prevent possible bodily injury from unexpected loader movement. Lower loader to ground before relieving pressure.

    Prevent possible bodily injury from unexpected loader movement. Lock out loader controls before attaching loader.

    Place transmission in PARK and shutoff engine.


  3. Relieve hydraulic pressure. (See Relieve Hydraulic Pressure in Controls section.)

  4. Lock out loader controls: Controls vary by tractor and options. (See your tractor Operator’s Manual for more information.)

  5. W23849
    W23849-UN-10FEB14

    Multicoupler

    W23850
    W23850-UN-10FEB14

    W23851
    W23851-UN-10FEB14

    A - Cover

    B - Knob

    C - Handle

    D - Coupler, Loader Half

    E - Chamfered Edge

    F - Locating Pins

    G - Holes

    H - Coupler, Tractor Half

    I - Pin (1 each side)

    Connect hydraulics using multicoupler:

    1. Push in knob (B) and rotate handle (C) upward.

    2. Lift cover (A) and insert loader coupler (D), with the chamfered edge (E) toward cover, onto tractor coupler (H). Make sure locating pins (F) on the loader coupler fit into the corresponding holes (G) in the tractor coupler.

    3. Rotate handle downward to engage pins (I) and lock the coupler halves together.


  6. CAUTION:

    X9811
    X9811-UN-23AUG88

    W24672
    W24672-UN-05FEB14

    W24673
    W24673-UN-13FEB14

    W24674
    W24674-UN-13FEB14

    Valve Handle Clearance—Three-Function Shown

    A - Exhaust Shroud

    B - Valve Handle

    C - Hose Fitting

    D - Shutoff Valve

    E - Fitting

    F - Angle, 30—40 Degrees

    Escaping fluid under pressure can penetrate the skin causing serious injury. Avoid the hazard by relieving pressure before connecting hydraulic or other lines. Protect hands and body from high-pressure fluids. See additional information, Avoid High-Pressure Fluids in Safety section.

    IMPORTANT: Prevent possible machine damage. On some tractors, the shutoff valve handle (B) contacts the tractor exhaust shroud (A) when the valve is closed. Reposition the valve if necessary as follows:

    1. Place transmission in PARK and shutoff engine.

    2. Relieve hydraulic pressure. (See Relieve Hydraulic Pressure in the Controls section.)

    3. Slightly loosen fittings (C and E).

    4. Turn shutoff valve (D) 30—40 degrees (F), as shown.

    5. Rotate valve handle (B) and verify that there is adequate clearance between the handle and the exhaust shroud (A) and adjacent fittings.

    6. Tighten fittings to specification.

      ItemMeasurementSpecification
      FittingsTorque50 N•m (37 lb·ft)


  7. W28038
    W28038-UN-09JUN17

    A - Harness, Three-Function (if equipped)

    If equipped—Connect three-function harness (A).


  8. CAUTION:

    W26447
    W26447-UN-14NOV14

    Mid-Mount Couplers

    A - Coupler, Female

    B - Coupler, Male

    C - Cap

    D - Plug

    Prevent possible injury from unexpected loader movement. Hose connections must be correct for the loader to respond as expected when the controls are moved.

    IMPORTANT: Prevent possible hydraulic system contamination. Before connecting coupler halves make sure that fittings are free of dirt and debris. Verify that hoses are not twisted or kinked.

    NOTE: Hose connections have color-coded caps and plugs. (If caps and plugs are missing, see Identify Hose Connections in the Service section.)

    Connect hydraulics using mid-mount couplers:

    1. Push and hold collar on female coupler (A).

    2. Match color-coded cap on hose end with same color-coded plug on the coupler. Insert hydraulic hose with the male coupler (B) into female coupler.

    3. Release collar on the female coupler.

    4. Connect color-coded cap (C) and plug (D) together.

    5. Repeat connections for all the couplers.


  9. W23855
    W23855-UN-30SEP13

    Right-Hand Side Shown

    A - Mast Pin (1 each side)

    Make sure mast pins (A) on both sides are retracted (pulled out) as shown.


  10. W27955
    W27955-UN-08MAY17

    W26640
    W26640-UN-12MAR15

    Right-Hand Side Shown

    W24093
    W24093-UN-05FEB14

    W24094
    W24094-UN-05FEB14

    A - Parking Stands

    B - Mast (1 each side)

    C - Mast Pin (1 each side)

    D - Boom Cylinder

    E - Pin (1 each side)

    F - Saddle (1 each side)

    G - Handle (1 each side)

    H - Cradle (2 per side)

    I - Bushing (2 per side)

    J - Knob (1 each side)

    Start engine.


  11. Place transmission in NEUTRAL to allow for tractor movement.

  12. Unlock loader controls: Controls vary by tractor and options. (See your tractor Operator’s Manual for more information.)

  13. Extend bucket cylinders along with boom cylinders (D) until mast (B) lowers, pins (E) rest in saddles (F) on both sides. Continue until parking stands (A) are slightly off the ground.

  14. Retract lift cylinders until mast bushings (I) are seated in cradles (H) on both mounting frames.

  15. Place transmission in PARK and shutoff engine.

  16. Install mast pins (C) on both sides of loader:

    1. Push in mast pin and rotate the handle (G) upward until knob locks into mast.

    2. To make sure the knob (J) is securely locked in the top hole in mast, pull on pin handle while attempting to rotate downward. (Knob is locked if the handle does not move.)

  17. IMPORTANT: Prevent possible hydraulic hose damage from excessive contact with the tractor exhaust. Position the hose bundle so that the hoses loop down in between the hose bracket and boom.

    W26641
    W26641-UN-12MAR15

    W28131
    W28131-UN-29JUN17

    5E 3-Cylinder MY18 Tractors

    Position hose bundle so that the hoses loop down in between the hose bracket and boom as shown.

    For 5E 3-Cylinder MY18 tractors position hoses as shown.


  18. CAUTION:

    W27956
    W27956-UN-08MAY17

    Right-Hand Side Shown

    W24096
    W24096-UN-31JUL13

    A - Parking Stands

    B - Supports

    C - Latch Plate

    D - Latch

    E - Foot Plate

    Prevent bodily injury, keep hands and fingers away from sides of the parking stand (A) and foot plate (E) when storing the parking stands.

    Store loader parking stands:

    1. Pull out support (B) and slide down parking stand (A).

    2. Lift parking stand and push upward toward bottom of boom.

    3. Push parking stand inward until latch (D) engages latch plate (C), locking parking stand in place.

    4. Repeat steps on the opposite side.


  19. Check loader operation and performance.

OUO6064,0001E41-19-20170718