How To Repair 325 Jd Pto Awitch
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John Deere 3120, 3320, 3520, 3720 - Hydraulic and Hitch
John Deere 3120, 3320, 3520, 3720 Three Signal Hitch
Drawbar Hitch
Maximum static vertical load on drawbar should not exceed the maximum recommendations. Drive slowly with heavy loads. Maximum Drawbar Loads - Sure heavy equipment such equally a loaded single-axle trailer can identify excessive strain on the drawbar. Strain is greatly increased by speed and rough ground. Adjusting Drawbar Length - For fatigued PTO-driven implements, the drawbar must be in the operating position. The JD 3120, 3320, 3520, 3720 drawbar is equipped with ii adjusting holes for irresolute drawbar length and one pigsty for storage. Remove quick-lock pivot and drilled pin. Adjust drawbar to operating position, or to storage position. Install drilled pin upwardly from bottom of machine. Secure with quick-lock pin.
3 Point Hitch
The three-point hitch on John Deere 3120, 3320, 3520, 3720 tractor is classified every bit a Category 1 hitch. Place center link in storage hook when the hitch is non in use. Positioning Middle Link - For light and medium draft loads: Install center link in bottom hole of mounting bracket. Example of calorie-free and medium draft load implements would include a landscape rake. For medium and heavy draft loads: Install center link in middle pigsty of mounting bracket. Example of medium and heavy draft load implements would include a tiller or box bract. For very heavy typhoon loads: Install middle link in elevation hole of mounting bracket. Example of very heavy typhoon load implements would include a turn or ripper.
Using Rockshaft Control Lever
Apply rockshaft control lever to raise and lower equipment fastened to the three-indicate hitch. The six calibrated setting are for reference simply and exercise not signify specific operating depths. When the rockshaft control lever is moved forward, the typhoon arms will lower closer to the ground. Lower Implement: Button rockshaft command lever forward. Raise Implement: Pull rockshaft control lever rearward. The adjustable depth end can be adjusted to maintain a detail implement operating depth. To employ the depth stop knob: Operate implement for a few minutes to decide the desired operating depth. Loosen the depth cease knob. Move knob confronting rockshaft control lever. Tighten knob to keep the depth finish in position. Implement will operate in same position each fourth dimension rockshaft control lever is pushed confronting the depth stop.
Using Rate of Driblet/Lock Valve
To prevent overheating hydraulic oil and dissentious automobile, practice non raise rockshaft when drop/lock valve is closed. The rate of drop/lock valve controls the rate of rockshaft drop when the rockshaft control lever is operated. This provides direct rate of driblet command for iii-point hitch mounted implements. The valve can also be used to hydraulically lock the rockshaft (3-betoken hitch) in a desired position. Increase Charge per unit of Drop: Rotate drop/lock valve knob counter-clockwise to make drib faster. Decrease Rate of Drib: Rotate drop/lock valve knob clockwise to make drop slower. Loss of hydraulic pressure could event in sudden driblet of attachment. Lower attachment onto blocks or remove from machine before servicing. Lock three-Indicate Hitch: Rotate drop/lock valve knob clockwise until tight. Unlock iii-Bespeak Hitch: Rotate drop/lock valve knob counter-clockwise.
Using Draft Links
Slowly back machine into position to align draft links with implement lift brackets. Park car safely. For John Deere 3120, 3320, 3520, 3720 tractor equipped with optional telescoping draft links: Raise locking lever and pull link to extend equally needed. Connect draft links to the implement. Telescoping draft link locking levers must be in locked position earlier operating the auto or link damage could occur. For machines equipped with optional telescoping typhoon links: Sit on operator's seat and starting time engine. Back machine until each lock lever snaps and secures each typhoon link in the locked position.
John Deere 3120, 3320, 3520, 3720 Implements
Leveling Implement Front-to-Rear
Leveling a 3-betoken hitch mounted implement front-to-rear is achieved by adjusting the length of the heart link. Loosen locknut. Do non turn center link trunk past the stops, or threads may be damaged. Rotate handle to lengthen or shorten the center link. Tighten locknut. Leveling Implement Side-to-Side - Use turn handle on the right adjustable lift link to level a 3-point hitch implement side-to-side. Raise lift link turn handle from transport position and locking tab. Rotate handle approximately 1/two turn. Lower handle notch onto roll pin. Rotate handle to raise or lower draft link until 3-point hitch mounted implement is level from side-to-side. Return handle to the transport position with handle notch on locking tab.
Adjusting Implement Side-to-Side Sway
Check implement operator'south transmission procedure for adjusting sway links. When sway links have been properly adjusted, side sway of implement is controlled by position of links. Use left and right sway links to suit iii-point hitch implement side-to-side sway. Remove locking pin. Slide links to arrange length. Install locking pin. Adjusting Draft Links to Float Position - Adjusting 3-bespeak hitch stops to the bladder position volition allow both typhoon links to raise slightly as the implement follows ground contour. Adjust stops to the bladder position for 3-signal hitch implements such as a cultivator or mower. These implements will take footing gauging skids or wheels which may otherwise cause the implement to twist relative to the machine. Carefully remove bound locking pin, drilled pin and stop connecting each draft link and lift link. Connect each lift link and draft link with the same hardware, making sure the stop is installed in the aforementioned position shown.
Adjusting Typhoon Links to Rigid Position
Adjusting 3-bespeak hitch stops to the rigid position will restrict motility of the draft links as the implement follows footing contour. Adjust stops to the rigid position for 3-point hitch implements such as plows and ground engaging implements that should not twist relative to the car. Advisedly remove spring locking pin, drilled pin and stop connecting each draft link and lift link. Connect each lift link and draft link with the same hardware, making certain the stop is installed in the same position.
John Deere 3120, 3320, 3520, 3720 Tractor iMatch Quick-Hitch
John Deere 3120, 3320, 3520, 3720 tractor Installing Hitch - Remove three drilled pins and two bushings from hitch. Use automobile rockshaft control lever to fully lower iii-indicate hitch draft links. Park machine safely. Position hitch most draft links and adjust iii-point hitch sway links to align typhoon links with hitch. Install hitch on typhoon links using drilled pins. Install 3-point hitch center link on hitch using heart link quick-lock pivot and drilled pivot. Connecting Implement - Install two bushings included with hitch on drilled pins in implement draft link lift brackets. Motility levers on hitch to unlocked position. Back machine into position and align hitch with implement lift brackets. Use rockshaft control lever to position hitch under lift brackets and lift implement from ground. Fully enhance implement. Move levers on hitch to locked position.
John Deere 3120, 3320, 3520, 3720 Tractor - Removing Implement and Hitch
With implement in raised position, move levers to unlocked position, then lower implement to ground. Move tractor forward to disengage hitch from implement. Move levers on hitch to locked position. Use machine rockshaft control lever to fully lower hitch and 3-indicate draft links. Remove drilled pins from iii-point hitch eye link and draft links. Place drilled pins in hitch for storage. Move John Deere 3120, 3320, 3520, 3720 tractor forwards to disengage from hitch. Connecting Implement Hydraulic Hoses - Relieve hydraulic pressure: Move dual selective control valve (SCV) lever rearward-to-forrard and side-to-side several times. Move 3rd SCV lever rearward-to-forwards several times if equipped. See your implement operator's manual for specific instructions on connecting hydraulic hoses to couplers. Install hose ends in couplers with matching colors. Colors for the couplers are shown on the label installed on the motorcar well-nigh the couplers. Run across your implement operator'southward manual for specific instructions on operating SCV controls. To preclude contagion of female person quick couplers, color-coded hose ends should be installed in the couplers when not existence used.
Dual Selective Control Valve Lever
The label installed on the machine next to the dual selective control valve (SCV) lever shows the unlike lever positions. Lever positions numbered one-four on the label match hydraulic line couplers numbered i-four on the label installed on the machine near the couplers. Moving the lever to position 1 will supply fluid to coupler ane and return fluid through coupler 2 and so forth. Move the lever to the total right or regen position for faster loader saucepan dumping. Motility the lever to the full forward or float position to remove pressure in both lines 3 and 4 and permit fluid to flow back and along between the lines. The lever may be left in the float position.
Dual Selective Control Valve (SCV) Lock Lever
John Deere 3120, 3320, 3520, 3720 Tractor without Cab - Selective Control Valve (SCV) lock lever allows the operator to command the type of dual SCV lever movement needed for a item performance or state of affairs. Operation of the lock lever is indicated on label. To permit movement of dual SCV lever in all directions, move lock lever to the pinnacle position. Functioning of the dual SCV is totally unlocked. To prohibit engagement of the regen (regeneration) function of the dual SCV, move lock lever to the heart position. This position is recommended for all implements except for the front loader. Heavily-loaded loader buckets will dump more than rapidly when the regen function is engaged. The regen part is available only with the lock lever in position C. To prohibit movement of dual SCV lever in all directions, motility lock lever to the lesser position. Performance of the dual SCV is totally locked.
JD 3120, 3320, 3520, 3720 Tractor with Cab - Selective Control Valve (SCV) lock lever allows the operator to control the type of dual SCV lever movement needed for a item performance or situation. Performance of the lock lever is indicated on characterization. To allow motion of dual SCV lever in all directions, push the lock lever inward to center position. Performance of the dual SCV is totally unlocked. To prohibit engagement of the regen (regeneration) function of the dual SCV, push the lock lever all the mode inward. This position is recommended for all implements except for the front end loader. Heavily-loaded loader buckets will dump more than rapidly when the regen function is engaged. To prohibit motion of dual SCV lever in all directions, make certain SCV lever is in center position, and pull the lock lever direct outward. Operation of the dual SCV is totally locked. Afterwards extended apply, the dual SCV lever may require cable aligning to lock out.
Hydraulic Third Selective Command Valve (SCV)
John Deere 3120, 3320, 3520, 3720 tractor can be equipped with an optional hydraulic tertiary Selective Control Valve (SCV) and hydraulic outlets to operate hydraulically-driven implements. The machine-mounted hydraulic outlets are female quick couplers (A). When the implement hydraulic hoses are connected to the couplers, motility the third SCV lever forward to divert fluid to the lower connector line and render through the upper connector line. Move the lever rearward to divert fluid to the upper connector line and return through the lower connector line. Move the lever to the full forward or float position to remove pressure level in both connector lines and let fluid to menses dorsum and along between the lines. See your implement Operator's Transmission for implement functions which correspond to lever positions. To forbid contagion of female quick couplers, colour-coded hose ends should be installed in the couplers when not existence used.
John Deere 3120, 3320, 3520, 3720 Diverter Valve
JD 3120, 3320, 3520, 3720 models can be equipped with an optional diverter valve and hydraulic outlets to operate hydraulically-driven implements. The auto-mounted hydraulic outlets are female quick couplers. If the key switch is moved to the off position, the dual SCV lever will default to operating the front quick couplers. The key switch must be moved to the run position and the diverter system re-activated to operate the rear couplers. Press the front of the diverter switch to activate the rear SCV quick coupler ports. The switch indicator light will continue. Press the back of the diverter switch to conciliate the rear SCV quick coupler ports. The switch indicator light volition get off.
- JD 3120, 3320, 3520, 3720 Engine
- JD 3120, 3320, 3520, 3720 Transmission
- JD 3120, 3320, 3520, 3720 PTO
- JD 3120, 3320, 3520, 3720 Brakes and Wheels
- JD 3120, 3320, 3520, 3720 Hydraulic and Hitch
- JD 3120, 3320, 3520, 3720 Operating
- JD 3120, 3320, 3520, 3720 Troubleshooting
- run across all JD model specs
- see all JD service instructions
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Source: http://tractorgearbox.com/jd_3120_3320_3520_3720_hydraulic_and_hitch.html
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