Low-effort controls are conveniently grouped on the right-hand side.

The finger-touch controls are:

Left mower deck lift/lower switch
Front mower deck lift/lower switch
Right mower deck lift/lower switch
Electronically-controlled throttle lever
Electronically-activated power take-off (PTO) switch
Speed-range lever for high, neutral, and low range
Four-wheel drive (4WD) lever

Hydrostatic power steering

Makes it easy to turn the machine, reducing operator fatigue
Allows quick steering action, two and a half turns lock-to-lock, for excellent maneuverability

Two-pedal foot controls

Convenient two-pedal hydrostatic control system
Allows the operator to select speed and direction with just a touch of the toe while resting heel on platform
Twin Touch™ pedal design that allows the operator to change direction without having to lift his foot off the platform
Large pedal surface, which provides increased operator comfort
Keeps both hands free for steering and operating controls

Standard turning brakes

The individual brakes can be applied by the operator as a traction aid or to reduce the turning radius.

Master stop brake

Brake is easy to use.
Push-pull-type parking brake release allows the operator to simply pull out the knob and depress the foot brake to engage. To disengage, simply push the foot brake pedal and push the knob in to initiate release.
Brake provides stopping power to both drive wheels.
The stop brake is used for a parking brake.

Differential lock

Locks both front drive wheels together for added traction
Increases traction and flotation in poor traction conditions

The differential lock is located on the left side of the platform; this allows for easy use of the Twin Touch foot pedals (on the right side) while engaging the differential lock at the same time.

High/low range lever

The high-/low range lever allows the operator to select the desired speed range.
The machine must be stopped to shift between ranges.
Shifting to the neutral position allows the operator to by-pass the hydraulic drive for towing.

4WD lever

The 4WD lever allows the operator to engage 4WD in reverse. 4WD is automatically engaged when wheel slip occurs in forward drive.

Electronic cruise control

Beneficial when mowing open areas or when transporting
Located on the steering column

Cruise control operation

To engage, simply push forward on the cruise control switch and hold until the foot is removed from the forward pedal.
For an emergency stop, cruise can be released by pushing on the master brake pedal or turning the cruise control switch off.

Tilt steering

Allows the operator to adjust the steering column to the most comfortable position and provides additional clearance for entry to the operator station
Standard 20-W halogen headlights are located low in the column for the best illumination

Mower deck lift switches

The mower deck switches allow the operator to vary mowing widths, engage and disengage the wing-deck blades, and service and transport the machine.

Easy-to-view operator instrumentation

An instrument panel is located on the steering column for both operator convenience and safety.

Instrumentation includes:

Hour meter

Located on the steering column for easy viewing
Records the number of hours the engine has run
Used along with the periodic service chart (located in the engine compartment) to determine when service procedures need to be performed on the machine and mower deck

Engine glow plug light

The engine glow plug light indicates the intake manifold heater is energized. The operator should wait until the glow plug light goes off before starting the engine.

The manifold heater is controlled by a temperature-sensitive timer and turns off sooner in warm weather.
Starting the engine before the indicator turns off wastes fuel, creates smoke, and puts unnecessary wear on the starter.
If the starter does not engage when the key switch is turned to the start position, one of the start conditions has not been met. Trouble codes are presented as a sequence of flashes and pauses that must be counted and converted to a two digit number:
- One flash, a short pause, and two flashes – operator attempted to start the machine without the park brake locked and the operator is off of the seat (one of these conditions must be met for the starter to engage).
- One flash, a short pause, and three flashes – operator attempted to start the machine with the power take-off (PTO) engaged.
- Two flashes, a short pause, and one flash – hydrostatic pedals are not centered in the neutral position.

Engine coolant temperature light

The engine coolant temperature light indicates the engine is overheating. A warning beeper also sounds when the light comes on.

Engine oil pressure light

The engine oil pressure light indicates the engine oil pressure is low. The indicator should be lit as a test to make sure it is working when the key switch is turned to the run position. A warning beeper sounds when the light comes on. The light (and beeper) should go off once the engine starts.

Battery discharge light

The battery discharge light indicates the battery is not getting enough charge from the alternator. The light should come on when the key switch is turned from off to run. The light should go off once the engine starts.

Primary display unit (PDU) navigation

The PDU utilizes three buttons for navigation.

The display’s top-level screens can be cycled through by pressing the center button.

Top level screen functions are as follows:

A – Engine coolant temperature (ECT) screen

B – Pre-heat countdown (HPH) screen

C – Engine rpm (erpm) screen

D – System voltage (SV) screen

E – Diesel particulate filter (DPF) screen

F – Service menu (IServ) screen

The top-level screens are shown in order of display. To navigate to next top-level screen, press the center button on the PDU. For more information on the different functions, please refer to the machine’s operator’s manual.

Tool tray and cup holder for operator convenience

Tool tray and cup holder are convenient for the operator to get to:

Quick access to a drink and tools on the machine decreases downtime.

Power take-off (PTO) drive provides control and power

Mower decks are hydraulically driven using a separate closed-loop system with one gear-type motor for each deck:

Mowers are designed to provide increased torque to the decks for additional power and productivity in tough mowing conditions.
The operator can raise one or both of the wing decks and all hydraulic power will be directed to the center deck (exclusive John Deere feature) to provide maximum hydraulic pressure for extreme conditions.
Blades are belt-driven from each deck motor.

Safety starting system

The 1600 Turbo Series III Wide-Area Mower (WAM) has an operator-presence system.

In order to start the engine, the following must be met:

The hydrostatic foot controls must be in neutral.
The power take-off (PTO) must be disengaged.
The operator must be in the seat or the parking brake must be set.
The ignition key must be used.

In addition, once the engine is running, an interlock automatically shuts the engine and PTO off if the operator leaves the seat. To keep the engine running, the operator must disengage the PTO and set the parking brake before dismounting.

1600 Turbo Series III Wide-Area Mower

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