T
hanks for joining us for bestpractices and tips for operation of cat
wheel loaders in this bolog is intended to
provide operators of case series largely
lawyers basic proficiency for efficient
machine operation this bolog will also
provide information for operators wish
to improve their knowledge on wheel
loader controls and operating procedures
case series large rear loaders this
bolog contains only theoretical content
and demonstrates pre operating and basic
operating procedures this bolog does not
attempt to certify an operator or
replace on-site training this bolog is
designed to provide you with fundamental
understanding of machine operator safety
the location and function of the
operator controls startup and shutdown
procedures and basic operating
procedures that include bucket loading
truck loading loading carry and floor
maintenance today we will walk through
these procedures and practices on the
cat 988 k when mounting or dismounting
the machine always use the ladders
stairs and steps provided and follow the
design method by using the hand holds
review the proper procedure described in
the operation and maintenance manual
face the machine while mounting and
dismounting use three points of contact
when mounting or dismounting always use
two feet in one hand or two hands and
one foot to keep a firm balance when you
move never jump off a machine from any
Heights that's an easy way to spring or
break an ankle
you could also hit your head on the
machine which would cause even more
serious injury
with several ground-level safety
features located in the rear bumper of
the machine is a stairway light switch
transmission lockout engine starter
lockout in an emergency shutdown switch
it's very important
we walk around on the machine and
visually check for any areas that may
require service or scheduled repair pay
close attention to the condition of rims
and tires inspect the linkage pins hitch
area and underside of the machine
located on the back of the machine is
the rear vision camera which can be
cleaned while standing inside the rear
bumper handrail
also located on the back of the machine
is the cat detect
backup alarm
and vams blue light
also located in the bumper
receptacle and on this tear for final
machine an amber purge light for diesel
exhaust fluid this light will turn out
when the de F fluid has been purged back
to tank at this time the operator can
turn off the battery disconnect switch
hydraulic fluid can be checked on the
side of the machine using the sight
gauge
transmission fluid level checking the
tree
mission fluid level and adding fluid
when necessary
located at ground level the loader
provides locations for fueling and
filling the auto loop system also
located at ground level is the auto lube
fill location
if equipped optional fast-fill is also
located on the fuel tank
certain tr4 final loaders use diesel
exhaust fluid or deaf the deaf fill
location is at ground level deaf must
meet International Organization for
Standardization or ISO to 2 to 4 1 - 1
the depth and fuel tank should be filled
at the same time the burn rate of depth
is typically two and a half to three
percent of your fuel burn
located inside the engine enclosure is
the engine oil dipstick and fill the
operator can verify oil level by
removing the dipstick
you
a ladder is located
side of the platform on K series loaders
cabs are also equipped with alternate
exits refer to the operation and
maintenance manual for specific
locations on each model
the upper platform allows the operator
to access the engine coolant sight gauge
and the door located on top the engine
coolant fill
before operation always inspect and
fasten your seat belt
let's review the gauges on the dash
cluster
top left corner is engine cooling below
is hydraulic temp on the right fuel
level and if equipped diesel exhaust
fluid level and torque converter
temperature now we'll cover the
indicator lights on the display starting
at the top left hand corner working in a
clockwise pattern left hand turn signal
right hand turn signal engine emission
system failure brake warning economy
mode lift control float regeneration
status high exhaust temperature ride
control implement lockout reduce trim
pull engine failure lamp and primary
steering pressure in the center left you
have the action lamp and park brake
indicators the digital display shows
gear Direction ground speed and service
meter hours it also indicates if the
following features are active throttle
lock auto shift engine idle shutdown
delayed engine shutdown seatbelt is on
lockup clutch and if a regeneration has
been cancelled
the right hand cab pose contains
controls for the front wiper rear wiper
your control temperature setting
and control
running light switch
light switch HID lights if equipped
light switch
beacons way
if equipped
and hazard lights
we loaders are equipped with a soft
keypad here the operator can adjust
several machine settings let's review
each button starting at the top left
auto shift has two modes and mode one
you will notice that the machine will
start out in first gear by pressing Auto
shift again you are now in Auto to
driving the machine to start out in
second gear below you can use the up and
down arrows to select your max gear that
the machine will shift into next is the
lockup clutch button this disables
second gear lockup only on the loader
following this is rim pole control when
all three lights are on you have a
hundred percent rim pole
as you push the button and turn lights
out you are reducing rim poll again when
all three lights are on you have a
hundred percent rim poll the next button
is ride control this turns your ride
control system on and off following this
are your kick outs the first is your
upper kick-out press and hold the button
until it blinks and beeps the second is
you return the big kick out this sets
the level of your bucket edge if
equipped following your return to dig
kick out is your heated mirror you can
also adjust the backlight intensity by
hitting the last button and giving the
lights moving on to the second row you
have throttle lock on or off as an
operator if you choose to set throttle
lock you have to turn this button on to
set your engine RPM for machines
equipped with an auto loop system the
next button allows you to force the auto
loop to grease while you're in the cab
so you can verify the system is working
properly the next button is your lower
kick-out this stops the linkage at the
lower position by holding down until it
beeps then you have economy mode by
hitting the eco button this actually
provides throttle on-demand for the
operator engine speed is controlled
automatically the last button on the
keypad is to help assist
pushing the question mark button you can
actually hit a button that you want to
learn about on the keypad and it will
give you a description on the bottom of
the touchscreen
the graphical information display has
two home screens default as shown here
is the quad gauge showing machine
parameters the second is a work monitor
providing real-time fuel burn and
lifetime average if equipped production
information is also displayed now let's
review the navigation buttons on the
outside of the screen the first is
display settings returning to the home
screen we have machine settings
followed by totals
and then serve
and lastly operator on the right hand
side the last shortcut button on the
left side is for payload
located at the bottom of the touchscreen
is the information banner
let's review the payload homescreen and
the information that is available to you
as the operator number one displays the
total of the material loaded into the
truck
the smaller number indicates the number
of passes in the truck
bucket weight will instantly transfer to
the truck when the scale weight is
calculated number two displays the
weight of material currently in the
bucket number three displays the
remaining weight needed to achieve the
target payload for the currently
selected truck number four is bucket
zero used a zero a bucket on startup
when prompted
or when carry-back is occurring and not
able to be removed
number five is estimated weight number
six is material ID load site ID select
number seven is truck ID select number
eight is the delay code button number
nine is - one pass and truck clear
number ten is the store button this
should be pressed at the end of a truck
to store the data to memory and update
lifetime and trip payload totals below
the keypad you have the
electro-hydraulic or eh part break
and the implement lockout switch
to the right is the machine ignition
turn the key to the far right when
shutting down the machine turn the key
to the 12 o'clock position in certain
situations the machine will continue to
idle cool down and purge diesel exhaust
fluid back to tank only in an emergency
shutdown situation should you turn the
key to the orange position or 11 o'clock
also on the dash of equipped is the tr4
regeneration switch leave this switch in
automatic if the machine is key cycled
it will return to the auto by default
only in certain situations do you want
to take the machine out of automatic
regeneration mode the right-hand armrest
or implement pod has the following
controls throttle lock resume or excel
throttle lock set and decel
if equipped the turn signals
button the tilt and lift lever
equipped with softie tents
the left hand
ress contains a steering lock now in the
unlock position the operator is able to
articulate the Machine side-to-side
you can also up shift by hitting the
upper yellow button and downshift on the
lower on the bottom side of the joystick
is the forward neutral reverse switch
FNR
large wheel loaders are equipped
three pedals on the floor the first one
on the left is the impeller clutch
torque converter pedal or IC TC
this pedal actually controls rim pull or
power that is applied to the ground
while using the loader as you push in on
the pedal it cuts rim pull and
effectively reduces tire spin while
loading the bucket the last 10% of
travel is actually brake I CTC is very
important during normal operation it
allows the operator to modulate the
machine during directional changes
enables smooth transitions during the
work cycle prevents tire spin and
balances rim pull with hydraulic power
while digging with the bucket the next
pedal in line is the service brake pedal
this allows the operator to stop the
machine at any time on the far right you
have the throttle pedal this allows the
operator to manually control engine
speed during operation
green display houses the rear vision
camera which is a standard feature on
large wheel loaders if equipped the
machine may also have cat detect that
will give the operator warning of any
objects in his or her rear path
large wheel loaders are equipped with a
standard delayed engine shut down when
the operator turns the engine off by
turning the key to the 12 o'clock
position the machine will go into
delayed engine shutdown mode the
operator should not override this
feature as shown on the display you can
see that the machine is in shutdown
delay do not override only in a safety
emergency situation should the operator
turn the key to the 11 o'clock position
and override the shutdown when the
operator turns throttle lock on
and sets the engine rpm at a higher
level
after five seconds of inactivity the
machine will kick too low idle when the
operator goes back to work on the
implement pod engine speed will resume
automatically as shown here every
machine has a corresponding operation
and maintenance manual or OMM these
manuals contain warning sections on how
the machine should or should not be used
the OMM is located in the literature
holder or seat back storage area the
operator should become thoroughly
familiar with its content before
operating the wheel loader initially
before operation mirrors should be
adjusted on the outside of the cab
maximising rearward visibility or the
operator before production loading
starts the operator should set the
loader kick-outs on the soft key pad in
the cab the linkage should be positioned
before pressing the kick-out button
shown here the operator is setting the
lower kick-out just shops the bucket
before contact is made with the floor
the upper kick-out should also be set to
provide only the required amount of dumb
clearance needed for loading the truck
excessive lifting is not efficient they
returned the big kick out should also be
set to ensure the bucket edge returns to
a level position this can be done by
placing the bucket on the ground in a
level position
always maintain a smooth work floor with
good drainage keep loose rocks off the
floor wet rocks cut tires easier develop
smooth movements cheap bucket heel
slightly raised avoid tire spin by using
the left pedal I CTC use a tight B
pattern for truck loading spot the
trucks on the driver's side spot trucks
with a loaded bucket low horn the stop
trucks when spotting and when truck is
loaded
in course material pad the truck body
place the load don't throw the load into
the truck bed place the load in the
center of the truck bed
keep hoist heights to a minimum for
efficiencies and loading and to minimize
truck wear to the truck bed avoid
excessive bucket giel plate wear use
proper technique for setting adjustable
bucket kick out when digging raise the
bucket to provide heel clearance before
crowded this allows the operator to
properly set the tires the left pedal
controls the impeller clutch and brakes
depressing the left pedal reduces torque
to the wheels when all three lights are
illuminated max rim pull on the keypad
the pedal varies rim pull from a hundred
percent to roughly twenty percent as you
turn the lights out on the keypad rim
pull is reduced from 90 to 80 to 70
percent by default these settings are
adjustable in the touchscreen when the
pedal is depressed about half way the
brake begins to apply
- throttle lock the machine always run
in economy mode
this will reduce fuel consumption by up
to 20% engine speed is controlled with
left pedals and implement pod this
feature provides the efficiency of
manual throttle in the ergonomics of
throttle lock position loader one to
one-and-a-half wheel revolutions from
face to truck enter pile straight keep
frame straight when digging avoid
digging articulated transmission and
first gear when digging this provides
balance ground hydraulic speed use a
tight B pattern spot trucks at 45
degrees work face one-and-a-half to two
buckets wide minimize truck maneuvering
when loaded and wait time clean floor
between trucks keep rear truck tires off
pile keep loose rocks off the floor
create a pocket to place the truck the
pocket should be no deeper than the
distance from the bucket teeth to front
tires
keep a straight frame when digging
articulates a truck use right front tire
as a guide when spotting truck work the
face one and a half to two buckets wide
Center the load in the truck body
payload placement is critical when
loading trucks material should be
centered on the truck front to back and
side to side this will provide the most
accurate payload reading on the truck
when payload is shifted off center
excessive weight will be on the brakes
bearings tires steering components
hydraulic hoist and canopy material will
also be more prone to haul road spillage
in bolog you can clearly see the
correct way to Center the load front to
back and side to side take notice that
the operator is placing each bucket load
in the correct order
loading the center of the truck first
followed by the far sides and last the
closest half of the truck body this
results in more efficient loading and
less pushing by the loader operator
maintain optimum bucket Heights when
carrying material and a safe speed for
machine operation keep good load
retention without spillage use ride
control if equipped to help stabilize
the machine while carrying material turn
auto shift on and select mode to so the
loader will start out in second gear
after making your directional change
also set the max year in Auto shift this
will eliminate manual shifting for the
operator and increase efficiency of the
loader disable second gear lockup when
the carry distance allows for third and
fourth gear travel adjust kick outs when
necessary avoid over hoisting when
loading at lower heights
articulated digging in corner loading
this will apply excessive load on the
frames and hitch assembly causing
cracking or bearing failure wait time
with an elevated bucket this should be
reduced for best practices in site
safety never exit the cab with an
elevated bucket to ensure operator
safety all implements should be lowered
and ground engaged before exiting the
cab truck loading V pattern position
loader one to one-and-a-half wheel
revolutions from face two trucks enter
pile straight keyframes straight when
digging avoid digging articulated
transmission in first gear when digging
this provides balance ground hydraulic
speed use a tight V pattern spot trucks
at 45 degrees work face one-and-a-half
to two buckets wide minimize truck
maneuvering when loaded and wait time
clean floor between trucks keep rear
truck tires off pile keep loose rocks
off the floor
we hope that this bolog provided you
valuable best practices and tips for
optimal operations of cat k-series large
wheel loaders thank you for taking the
time .
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