LeeBoy 685D - Machine Components Overview

COMPONENTS OVERVIEW
The LeeBoy 685D Motor Grader is a compact motor
grader with the functionality of a large motor grader.
It’s versatility and specialized applications include
spreading base materials, ditch and shoulder projects,
ne grading, medium cutting and even snow removal.
Graders can also be used for bank sloping, leveling,
crowning, and road/runway maintenance. This self-
propelled, wheeled grader has an adjustable, 11-foot
(3.35 meter) moldboard blade positioned between the
front and rear wheels. An optional 12-foot (3.65 meter)
moldboard is also available. Optional attachments
include an 8-foot (2.4 meter) front blade, front or rear
scariers or a blade-mounted, ip-down scarier. Be
familiar with all the grader’s components and optional
attachments purchased before operating this machine.
Operator Station
The 685D Motor Grader is equipped with a canopy, but
an optional fully-enclosed cab version offers additional
operator comfort on the job site. Air conditioning,
heating, and other options are also available for a cab
model.
Levers, control switches and joystick controls are within
easy reach for operator comfort. The PV485 digital
controller unit on the steering control panel includes
throttle control, tachometer, fuel gauge, oil pressure
gauge, coolant temperature, voltmeter and hour meter
along with gauges and warning alerts. The steering
column can be tilted for comfort. Complete control
panel information is described in the following pages.
Engine
The 685D Motor Grader
is equipped with a
Cummins QSF3.8 Tier
4F diesel engine. This
Tier 4 Final fuel-efcient
engine offers the latest
in innovative emission
solutions to reduce diesel
particulate matter (DPM)
and other toxins released
into the air.
Advanced emission-control devices and low-sulfur fuel
requirements--only Ultra-Low Sulfur Diesel (ULSD)
can be used in this engine--combine with new after-
treatment methods. The SCR system is an efcient,
effective means of ltering dirt and other contaminates
for optimum engine performance and reducing air
pollution from exhaust emissions. The Selective
Catalytic Reduction (SCR) system precisely injects
Diesel Exhaust Fluid (DEF) into the engine’s exhaust
system to transform those toxic exhaust gases into
harmless water vapor and nitrogen. SCR technology is
also cost-effective and fuel-efcient.
The High-Pressure Common Rail (HPCR) fuel system
offers a new level of cleanliness, performance and
fuel economy. The fuel lter removes contaminants
from diesel fuel before it ows into the injection pump,
providing better protection against harmful particles.
The Direct Flow™ air ltration system holds 30 percent
more dust particles than conventional lters, enabling
longer service intervals and reducing maintenance
costs. The radiator cools the engine. A mechanically-
driven fan removes heat, saves horsepower and
reduces noise.
Lockable engine access doors on both sides of the
grader allow convenient access to components with
vandalism protection.
Refer to the Engine Owner’s Manual accompanying your
machine for additional engine information.
3
Components
3-3LeeBoy 685D Motor Grader