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John Deere 5090M, 5100M, 5115M Hydraulics
JD 5090M, 5100M, 5115M - Front Hitch and
Selective control valves
TO use the front hitch or the front SCV couplers, the operator must
shift the diverter valve. SCV I lever controls the front hitch
functions. Neutral - front hitch does not move. Lower - front hitch is
powered down and has down pressure. Float - front hitch lowers and
follows the ground contour. Raise - front hitch lifts. SCV II lever
controls the couplers on the front hitch. The function of the front
couplers are the same as rear SCV II.
John Deere 5090M, 5100M, 5115M - Connect
Hydraulic Hoses
Hydraulic hoses can fail due to physical damage, kinks, age, and
exposure. Check hoses regularly. Replace damaged hoses. Selective
control valve (SCV) couplers accept a standard hose tip as recommended
by ISO1 and SAE2. Adapters are available to update older hose tips to
the ISO couplers on this machine. When making connections, it is helpful
to relieve hydraulic pressure from the couplers. For mechanical SCVs,
turn the key switch off and cycle the SCV levers to the float position.
Installing hydraulic hoses in SCVs:
Clean area around where connection is made and end of implement
hydraulic hoses to prevent hydraulic system contamination. Open SCV
coupler dust covers as required. Determine extend and retract hoses.
Firmly push hoses into couplers. Lightly tug on the hoses to ensure that
connection is made. If connections are difficult, relieve pressure at
couplers.
Removing hydraulic hoses from SCVs:
Lower implement to ground before disconnecting hydraulic hoses. If
possible, retract remote cylinders as much as possible when stored to
protect the rod from damage. Shut off engine. Relieve pressure at the
couplers. Lock out SCV controls. Engage transport locks for rear SCVs.
Engage lock on multi-function lever for mid-SCVs. Pull hoses straight
out from couplers. Close SCV coupler dust cover.
Connect to Rear SCVs
Identify extend and retract hoses. Remove dust caps from hose end. Open
coupler covers. Making sure that hose end and coupler are clean, push
hose tip firmly into SCV coupler. Pull on hose making sure that positive
connection is made. Connect retract hoses to top couplers and extend
hoses to bottom couplers.
JD 5090M, 5100M, 5115M - Connect to Mid-SCVs
Connections are capped and require couplers to be installed if using
hose with ISO ends. Direct connection to the fittings can be made for
permanent applications. Match hoses to corresponding couplers. Remove
dust caps from hose ends. Remove cap assembly from the selective control
valve (SCV) couplers. Ensure that hose end and couplers are clean, slide
sleeve back, push hose tip firmly into coupler and release sleeve. Make
sure that positive connection was made by pulling on hose. Always use
SCV extend ports for lift functions for best performance. Deluxe SCV
sections (with flow control and selectable detents) perform better than
standard SCV sections.
John Deere 5090M, 5100M, 5115M - Single-Acting
Cylinders
Volume of oil required to extend a cylinder lowers the
transmission-hydraulic oil level. With cylinder fully extended, check
oil level and fill to the proper level. Only connect single-acting
cylinders to SCV extend coupler. Pull Selective control valves lever
back to pressurize and extend a single-acting cylinder. Push SCV lever
fully forward to float position and retract the cylinder.
Implements Requiring Large Volumes of Oil
Removing too much oil can result in malfunction when raising hitch or
using extend function of SCVs. Do not add oil to hydraulic system with
engine running. To determine if sufficient oil is available for
implement being used: Cycle all implement cylinders after starting
machine. Check transmission-hydraulic oil level. Add oil if necessary.
Lower implement to return oil to reservoir. Recheck oil level when
implement is removed. Drain excess oil if necessary.
John Deere 5090M, 5100M, 5115M - Operate
Hydraulic Motor
Use SCV I retract coupler with adjustable flow control for most
hydraulic motor operations. To regulate oil flow when operating a
hydraulic motor with any standard valve without adjustable flow control,
use an external flow control valve.
Hydraulic Motor Hose Connections and SCV Lever
Operations
Use only SCVs with adjustable flow control for continuous (motor)
applications. Shut off engine. Move SCV lever to be connected to motor
full forward, into float detent. Connect hydraulic motor supply hose to
the SCV retract coupler and return hose to the SCV extend, or case drain
as required by application. Set SCV lever detent for continuous motor
operation. Start engine. Do not return hydraulic motor directly to sump
via a port on differential case, except intermittent high-pressure
applications, such as a post pounder. To activate hydraulic motor, move
SCV lever to retract position. To stop hydraulic motor, move SCV lever
fully forward into float detent. To stop hydraulic motor, do not use
neutral lever position. Shut off engine and disconnect hoses from
couplers.
JD 5090M, 5100M, 5115M - Operate Power Beyond
with Selective control valves
Power beyond connections must be used when operating any external
hydraulic orbital motor with this machine. Failure to comply with power
beyond connections overheats and possibly damages the hydraulic system.
Oil can be supplied to power beyond equipment using SCV 1 on the deluxe
SCV (in continuous mode) or by using a power beyond kit with the
standard dual rear SCV. Shut off engine. Connect power beyond hose to
SCV I extend coupler. Set rear SCV I detent to continuous. Start engine.
Move SCV I lever into extend. Oil is now supplied to power beyond
device. To stop, de-activate power beyond device, then return SCV I
lever to neutral. Shut off engine and disconnect hoses.
Adjust Flow Control
Decrease flow rate if hydraulic oil overheats, remote cylinder moves too
quickly, or if hydraulic motor turns too fast. Flow control adjustment
only affects rear SCV I. This adjustment does not affect other valve
sections. Maximum flow possible on electrohydraulic section of
three-function mid-SCV is 45 L/min (11.9 gal/min). To increase flow,
rotate left (counterclockwise). To decrease flow, rotate right
(clockwise). If detent kicks out before end of cycle, use SCV I and
adjust flow control.
- John Deere 5090M, 5100M, 5115M - Engine and Transmission
- John Deere 5090M, 5100M, 5115M - Hitch and Drawbar
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