Specifications, Service and Repair of Farm and Lawn Tractors

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John Deere 3320 Tractor Specs Overview

John Deere 3320 Tractor Engine

Engine Model - Yanmar 3TNV88
Engine Power, Rated, hp (kW) - 32.5 (24.2)
Engine Speed, rpm - 2600
Power Boost, hp (kW) - No boost
Fuel Tank, gal (L) - 13.5 (51.1)
Cylinders - 3
Displacement, cu in (L) - 100.2 (1.642)
Engine Bore, in (mm) - 3.46 (88)
Engine Stroke, in (mm) - 3.54 (90)
Block Design, Replaceable Liners - Cast in block
Aspiration, Turbocharged or Naturally Aspirated - Natural
Fuel System Description - Rotary-Distributor Type
Fuel System Control - Mechanical
Fuel Injection to combustion chamber - Direct
Exhaust Pipe - Underhood std; vertical opt
Fan Drive Type - Belt
System Rating, Volts - 12
Alternator Rating, Amps - 40

John Deere 3320 Tractor Transmission

Description - PowrReverser
Transmission Type - 3 Range, 4 Gear
Forward / Reverse Speeds - 12F / 12R
Maximum Speed Forward, mph (kph) - 16.4 (26.4)
Shuttle (Forward-Reverse) - Standard

Optional Transmission

Description - eHydro
Transmission Type - 3 Range Hydrostatic
Forward / Reverse Speeds - Infinite, 3 range

John Deere 3320 Tractor PTO (Power take off)

PTO Horsepower, hp (kW) - 25.5 (19.0) / 25 (18.6)
PTO Speeds, rpm - 540
PTO operational Type - Independent

Wheels

Drive Wheels - 4WD
Tractor Steering Configuration - Front Steer

JD 3320 Tractor Rear Axle

Final Drive - Spur gear
Axle Output End - Flange
Axle Bar Diameter, in (mm) - No bar axle

Tractor Brakes

Brake Type - Wet disc

John Deere 3320 Tractor Hydraulic System

Hydraulic System Type - Open center
Standard Pump Flow, gpm (Lpm) - 13.9 (52.5)
Standard Remote Valves - 5

3-Point Hitch Features

3-Point Hitch Category - Category 1
Draft Sensing or Lift Control - Position Control
Draft Link Ends Adjustable - Optional

3-Point Hitch Lift Capacity

Standard Lift Capacity 24 Inches behind pin, lb (kg) - 2,220 (999)

Tractor Drawbar

Drawbar Description - Adjustable length

Wheelbase

Wheelbase, 4WD, in (mm) - 68 (1727)

Tire Size

Front Tire Size, 4WD - 7.0-14 / 6PR R1
Rear Tire Size - 11.2-24 / 6PR / R1

JD 3320 Tractor Features

- 23.1 – 32.4 kW (31.4 – 44 hp).
- Compact high performance.
- Direct injected diesel engines.
- Automatic and gear transmission options.
- LoadMatch electronic power management system.
- Exclusive digital performance tracking system.
- Fully integrated cab available.
- Quick attach loader.

John Deere 3320 Tractor MotionMatch (eHydro)

MotionMatch enables the operator to adjust machine acceleration and deceleration rates.

Shorter starting and stopping distances can be set for applications requiring rapid changes in direction, such as operating with a loader. Longer starting and stopping distances can be set to avoid turf damage in other applications.

A MotionMatch setting of 1 is the shortest rolling (starting/stopping) distance, and a setting of 9 is the longest rolling (starting/stopping) distance.

Changing MotionMatch Setting:

- Press and hold the display mode switch until the display reads “Release”.

- Release the display mode switch and display should read “Coast”.

- Press the display mode switch once again.

- For machines without MotionMatch switch: Push the turn signal switch and return to neutral position to change to desired setting between 1 and 9. Position 5 is displayed as “DEF”, the factory default.

- For machines with MotionMatch switch: Push the turn signal switch and return to neutral position to change to desired setting between 5 and 9. Position 5 is displayed as “LONG_D”, the factory default / Push the turn signal switch and return to neutral position to change to desired setting between 1 and 5. Position 5 is displayed as
“SHRT_D”, the factory default.

- To confirm the changes for MotionMatch setting, press display mode switch once again.

Dual Selective Control Valve (SCV) Lock Lever

JD 3320 Tractor without Cab

Selective Control Valve (SCV) lock lever allows the operator to control the type of dual SCV lever movement needed for a particular operation or situation. Operation of the lock lever is indicated on label.

To allow movement of dual SCV lever in all directions, move lock lever to the top position. Operation of the dual SCV is totally unlocked.

To prohibit engagement of the regen (regeneration) function of the dual SCV, move lock lever to the middle position.

This position is recommended for all implements except for the front loader. Heavily-loaded loader buckets will dump more rapidly when the regen function is engaged. The regen function is available only with the lock lever in top position.

To prohibit movement of dual SCV lever in all directions, move lock lever to the bottom position. Operation of the dual SCV is totally locked.

John Deere 3320 Tractor with Cab

To allow movement of dual SCV lever in all directions, push the lock lever inward to center position. Operation 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 way inward.

This position is recommended for all implements except for the front loader. Heavily-loaded loader buckets will dump more rapidly when the regen function is engaged.

To prohibit movement of dual SCV lever in all directions, make sure SCV lever is in center position, and pull the lock lever straight outward. Operation of the dual SCV is totally locked.

JD 3320 Tractor Hydraulic Third Selective Control Valve (SCV)

This machine model series can be equipped with an optional hydraulic third Selective Control Valve (SCV) and hydraulic outlets to operate hydraulically-driven implements.

The machine-mounted hydraulic outlets are female quick couplers.

When the implement hydraulic hoses are connected to the couplers, move the third SCV lever forward to divert fluid to the lower connector line and return 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 in both connector lines and allow fluid to flow back and forth between the lines.

Using Diverter Valve:

- Press the front of the diverter switch to activate the rear SCV quick coupler ports.

- The switch indicator light will go on.

- Press the back of the diverter switch to deactivate the rear SCV quick coupler ports.

- The switch indicator light will go off.

I was mowing yesterday when the mower deck suddenly froze hard enough to stall the engine. It is a 60D Autoconnect deck. The problem is that an oil seal on the bottom of the gearbox on the mower deck was defective with the result that the oil leaked out and the bearings froze. The service manager says that they have had no
trouble with this unit before, but it is a relatively new mower, and it seems unlikely that this kind of problem would develop. Has anyone else experienced this problem?

I had the input shaft bearing fail on the gearbox of my 54C deck on my X748, at 170 hrs. I caught it before it froze up, but there was about 3/8" side play in the shaft when I found it. My dealer could not find a replacement anywhere in the Deere Parts inventory, nationwide, so he gave me the gearbox from a new 62C deck in his warehouse. I imagine the gearboxes are similar, although I would imagine yours is a bit beefier since the input power is greater. The basic design is the same, and the repair manual for mine says to replace the gearbox as a unit when a bearing fails. The only part available separately is the seal for each bearing, but not the bearings themselves. Maybe yours is different.

I have a 3320 and run a front mount snowblower in the winter, leaving the box-blade on the back for ballast. BB gets cycled whenever the tractor is run. Spring comes and I put the FEL back on the front, and head out to smooth my 800' gravel drive with the BB. BB barely goes low enough to touch the ground! The rate of drop valve is mid-way open. I tried it turned fully CW and CCW with little effect. All of the 3-Pt hitch balls and pins are loose. I can tap the pins back and forth, and turn the ball joints with a small wrench. Lots of lube on everything, everything seems loose. I can raise the BB and when I drop it, it seems to fall reasonably quickly but doesn't reach the ground. Is there some adjustment I do not know about?

Did you check to see that your rock shaft hand lever is moving to the fully down position. Mine has a stop that allows it to only drop to a certain position. The control valve for the FEL/Snowthrower; is it mounted on the FEL or attached permanently to the tractor? I ask being as from the sounds of it the issue happens when the FEL is mounted. The way tractor hydraulics work (power beyond) problems with a control valve anywhere in the circuit can really screw up the other parts of the circuit. If the problem goes away with the FEL removed and returns when it's attached I'd be checking the FEL control valve hookup and make sure all the FEL quick couplers are fully connected.

John Deere 3320 PTO won't turn. We got about a foot of snow last night so I hooked my rear mount snow thrower on the 3pt and got going. Unfortunately I managed to pick up a chunk of 2x6 hiding under the snow and everything stopped. I cleared the obstruction but now the PTO shaft won't turn. The light on the dash comes on when I pull the button but no spin. The blower will turn by hand, the PTO will turn by hand with the tractor off, it will stall when I get off the seat with the button pulled. Anybody got any ideas. I can call for home service, but I really can't afford that right now. I've been pushing snow with the front loader in the meantime.

There are no shear pins on the tractor side; the protection should always be on the implement side via shear pin(s) or a slip clutch. The tractor obviously thinks the PTO is on since the light is on and the engine cut out if you get off the seat.

Here's an update on my PTO issue. This past spring after an entire winter of pushing snow with the front loader, I tried to use the PTO again and it worked fine. In fact I tilled 4 gardens and mowed all summer switching back and forth between implements. Now, come snowfall this winter, I've again hooked up the snow thrower only to find that the PTO again won't spin. Is there something possibly to do with the cold temps outside?

Your blow will probably have 2 shear pins. A smaller one on the auger drive and the main one will be on the PTO drive shaft. If there is no pin on the drive shaft then it should have a slip clutch, which would not be normal. If the PTO worked with the tiller then you should have an easy fix.

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