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 minuteswithout the need for tools.
In order 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, install the parking stands and place the mast pins in 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. Now using the bucket circuit, rollback the bucket until the mast is removed from the pocket and will clear the tires.
With the tractorinpark, shut the engine off and relieve the hydraulic pressure as indicated for the tractor. Relieve pressure on the single-point hydraulic connection, then disconnect or open the single-point hydraulic connector.
Store the loader half of the single-point connector.The tractor is now ready tobackaway from the loader.
Over time, increased width in tractor hoods have caused issues with available space for running traditional oil lines of a loader along the boom,making them more susceptible to damage.
To improve this situation,the oil lines have been routed through the boom arm and the torque tube, improving line protection and the appearance of the loader.
Fast bucket cycle times are importantto 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.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.
A hydraulic shut-off valve is included with the H480 Loader 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.
|Front axle configuration|
|Pump capacity||121 L/min
|Rated pressure||201 bar
|Bucket used||Heavy-Duty 96-in. (2450 mm)|
|Bucket weight||366 kg
|Lift capacity at full height||Measured at pivot (U)
4965 lbMeasured at 800 mm ahead of pivot (V)
|Lift capacity at 59 in. (1500 mm)||Measured at pivot (W)
7282 lbMeasured at 800 mm ahead of pivot (X)
|Boom breakout force||Measured at pivot (Y)
9000 lbfMeasured at 800 mm ahead of pivot (Z)
|Bucket rollback force capacity||At maximum height (VV)
6261 lbfAt 59-in. (1500-mm) lift height (XX)
10908 lbfAt ground-level line (ZZ)
|Dimensions||Maximum lift height (A)
185 in.At full height - bucket level (B)
177 in.At full height - bucket dumped (C)
|Overall length (I+F)||5.7 m
|Overall height in carry position (J)|
|Digging depth (H)||150 mm
|Reach||At maximum height (D)
56 in.At ground level - bucket level (F)
|Bucket angle||Dump angle (E)
70 degree (angle)Rollback angle (G)
45 degree (angle)Dump angle, ground
95 degree (angle)
|Cycle times||Loader raise
4.65 secondsLoader lower
3.22 secondsBucket dump
1.72 secondsBucket rollback
Specs apply to MSL levelling for 7280R with front tyres 420/90R30 and rear tyres 480/80R46; actual specs may vary