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John Deere 520M Loader

Model Photo

520M

  • Available in non-self-leveling and mechanical self-leveling booms
  • Compatible with 5e 3cyl and 5E 4cyl tractors (5050E - 5100E)
  • Two and Three functions available
  • Hydraulics that improve cycle times and productivity
  • Integrated parking stands for easy attachment and removal

 

Features

Single-point hydraulic connection saves time

Single-point hydraulic connection on row-crop tractor (closed) Single-point hydraulic connection on row-crop tractor (closed)
Single-point hydraulic connection on utility tractor (closed) Single-point hydraulic connection on utility tractor (closed)

The 520M, H240, 540M, H260, and H310 Loaders can be configured with a single-point hydraulic connection that also incorporates the connection point for any electrical needs. To disconnect the hydraulic connection between the loader and the tractor, it is necessary to relieve the hydraulic system oil pressure on the tractor.

Loader removal (parking) made easy

Parking stands Parking stands
#

John Deere loaders are easily removed and reinstalled on tractors without tools. The parking system allows removing or attaching the loader to the tractor in minutes without the need for tools.

 

To remove or park the loader, apply slight down pressure to the loader boom with the bucket dumped at approximately a 30-degree angle. With the tractor in park, lower the parking stands and place the mast pins in the open position.

Removing or parking the loader
Parking stand in stored position Parking stand in stored position
Removing parking stand Removing parking stand
Mast pin in the closed position Mast pin in the closed position
Rotating mast pin to the open position Rotating mast pin to the open position

Utilizing the boom circuit with the tractor in neutral, rotate the mast forward until the mast has rotated past the pin location on the mounting frame by extending the lift cylinder. Using the bucket circuit, roll back the bucket until the mast is removed from the pocket and will clear the tires.

Mast pin in the open position Mast pin in the open position
Masts rotate forward, then bucket rolled back Masts rotate forward, then bucket rolled back

With the tractor in park, shut the engine off and relieve the hydraulic pressure as indicated for the tractor (rotating the joystick). Disconnect or open the single-point hydraulic connector (or remove couplers if no single point is installed).

Disconnect/open single-point hydraulic connection Disconnect/open single-point hydraulic connection
Disconnect/open single-point hydraulic connections Disconnect/open single-point hydraulic connections

Store the loader half of the single-point connector or hoses, and back away from the loader.

Single-point hydraulics disconnected Single-point hydraulics disconnected
#
Parked loader Parked loader

Boom lockout for easy service

Hydraulic shut-off valve (open position) Hydraulic shut-off valve (open position)
Hydraulic shut-off valve (closed position) Hydraulic shut-off valve (closed position)

A hydraulic shut-off valve is included with the M- and H-Series Ag Loaders to ensure the loader does not lower suddenly. For example, this allows the boom to be locked out when someone is required to be located under the loader boom for service work on the tractor. It should not be used for extended periods of time unless an appropriate support stand is also utilized.

False rod bucket cylinders improve productivity

False rod cylinder False rod cylinder
#

Fast bucket cycle times are important to dump the load from the bucket as quickly as possible, (quite often) in order to be as productive as possible, while completing loading operations. The bucket cylinder design can have a major impact on this cycle time, especially for the mechanical self-leveling (MSL) loaders.

 

Therefore, all MSL 520M and H-Series Loaders utilize false rod bucket cylinders. A false rod cylinder has a smaller displacement of oil requirement on the head end of the cylinder, which allows this cylinder to dump much faster than a normal cylinder.

Loader suspension system (LSS) to enhance the ride

Nitrogen-charged accumulator and electric valve Nitrogen-charged accumulator and electric valve
Operator on/off switch Operator on/off switch
LSS on H180 LSS on H180
LSS on 5E and 5M LSS on 5E and 5M

An enhancement to the loader is the suspension system. A great level of loader productivity is achieved with the LSS.

  • An accumulator charged with nitrogen and connected to the head-end lift cylinder hose through a T-fitting provides shock absorption
  • The cylinders move in and out to allow the boom to float 

Performance

  • Bales can be transported more efficiently from one end of the field to the other over frozen, hard-packed, or rutted terrain.

NOTE: Check bale-handling capability of tractor before use.

  • Pallets can be moved easily without sustaining cargo damage
  • Pallets of seed or fertilizer can be carried across a yard without a bag spilling and creating a costly mess
  • Properly ballasted tractor with LSS has increased stability, creating a smoother ride for the operator

Cost of ownership

  • Extended life of loader pins and bushings
  • Less stress on tractor axle

Reasons for turning LSS off include:

  • Digging applications - with LSS on, the cylinders retract slightly, losing lifting power
  • Holding a grade when blading - with LSS on, it is difficult to hold a constant grade
  • Precise pallet and bale handling - with LSS on, the load moves up and down slightly while being positioned
  • Parking a loader - with LSS on, when down pressure is applied, the lift cylinders retract slightly, making it more difficult to park

The switch is conveniently located in the operator station to avoid having to exit the operator station to manually move the handle on the LSS.

LSS can also be ordered with a manual shutoff. Depending on the tractor/loader model, the accumulator is located in different places. On the H180, the accumulator is mounted outside the bottom of the mounting frame. On the 5 Series Tractors, the accumulator is mounted near the inside of the rear right wheel. On 6 Series Tractors and larger, it is mounted in between the hydraulic connection and the mounting frame.

Key Specs

Maximum lift height 3352 mm
132 in.
Lift capacity at full height Measured at pivot
1598.0 kg
3523.0 lb
Boom breakout force Measured at pivot
2105 kgf
4640.7 lbf
Bucket rollback force capacity At ground-level line
2191.0 kgf
4830.3 lbf
Clearance at full height - bucket dumped 2520 mm
99.2 in.
Dump angle, degrees -55 degree (angle)
Rollback angle, degrees 44 degree (angle)

Tractor

Model 5E Final Tier 4 (FT4) 3-Cyl (5045E, 5055E, 5065E, 5075E)
Front tire 320/85 R24 BKT (12.4 R24)
Rear tire 420/85 R30 BTK (16.9)
Front axle configuration
Wheelbase 81 in.
Pump capacity 11 gpm
Rated pressure 2828 psi

Loader

Base weight 906.29 kg
Leveling configuration Non-Self Leveling (NSL)
Bucket used General Purpose
1850 mm
73 in.
Bucket weight 178 kg
392 lb
Lift capacity at full height Measured at pivot
1598.0 kg
3523.0 lb
Measured at 800 mm ahead of pivot
1040.0 kg
2292.8 lb
Lift capacity at 59 in. (1500 mm) Measured at pivot
1828 kg
4030 lb
Measured at 800 mm ahead of pivot
1349 kg
2974 lb
Boom breakout force Measured at pivot
2105 kgf
4640.7 lbf
Measured at 800 mm ahead of pivot
1437 kgf
3168 lbf
Bucket rollback force capacity At maximum height
1209 kgf
2665.4 lbf
At 59-in. (1500-mm) lift height
2151.0 kgf
4742.1 lbf
At ground-level line
2191.0 kgf
4830.3 lbf
Dimensions Maximum lift height
3352 mm
132 in.
At full height - bucket level
3157 mm
124.3 in.
At full height - bucket dumped
2520 mm
99.2 in.
Overall length 4.3 m
14.1 ft
Overall height in carry position
Digging depth 73 mm
2.9 in.
Reach At maximum height
1038.2 mm
40.9 in.
At ground level - bucket level
2248 mm
88.5 in.
Bucket angle Dump angle, degrees
-55 degree (angle)
Rollback angle, degrees
44 degree (angle)
Dump angle, ground
-144 degree (angle)
Cycle times Loader raise, seconds
5.1 seconds
Loader lower, seconds
3.4 seconds
Bucket dump, seconds
4.3 seconds
Bucket rollback, seconds
2.6 seconds

Additional information

Date collected