Komatsu D155ADozer Operation Inspection

 

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where i can write details for quarry and construction machinery. thats is related

to dozer 155AKomatsu products today we're going to

cover how to properly conduct a pre

operation inspection on the d 155 a dozer now the reason we do the

inspection is to just take a quick look

at the machine and inspect it for any

damage excessive wear or any leaks

getting the habit of doing this

inspection will go a long way towards

maximizing the production and the

longevity of the machine everything we

cover today will also be included in the

operation and maintenance manual inside

the cab so with that let's go ahead and

get started

okay so as we approach the machine we

have a couple checks we can do right

away the first one would be to look up

in the cab and just ensure that there's

nobody inside move our way down the

lights into the grill and just make sure

there's no obvious signs of damage from

there we'll go ahead and start at our

work equipment work our way around the

machine with the blade what we're

looking to check for is all of our welds

cutting edges and corner bits just to

make sure there's no signs of excessive

wear and also ensuring that the bolts

are in place from here we can go ahead

and swing around to the backside of the

blade.

what we're doing here is checking the

backside of the blade looking at all of

our welds and also our mounting points

for the arms and the cylinders want to

make sure that the pins and bolts are in

place and everything's receiving the

proper amount of lubrication also a

really good opportunity to take a look

under the front side of the machine and

just make sure you don't see any signs

of leaks from here we can go ahead and

look at our hydraulic piping and our

hydraulic lines so we'll just continue

our way across the push arm until we get

to the final mounting spot if everything

looks ok there we can take a step back

now and do our undercarriage inspection

what we want to do is just visually take

a look at the idler the shoes the

carrier rollers the final drive and

sprocket work our way down to the track

guides the K bogies in the pivot shaft

if everything looks okay here go ahead

and take a look at our sight glass and

make sure we have adequate levels of

hydraulic fluid and we can continue to

work our way around the machine go ahead

and taking a look at all of our mounting

points it won't move up to the rear view

camera and just work our way down so

looking at the backside of the cab and

all of our lights from here we can move

to the Ripper assembly itself we're

going to be checking all the mounting

points for the arms and the cylinders

making sure that all the bolts and pins

are in place and everything is receiving

the proper amount of lubrication you can

actually do that check on both sides of

the Ripper assembly on our way over to

the other side we can get down and take

a look at the shank in the Ripper tooth

make sure that there's no signs of

excessive wear it's also a really good

opportunity to take a look underneath

the machine and see if there's any leaks

as we work our way back towards the

machine make sure we're checking the

hydraulic lines and also check in the

Ripper light it's also location of the

sediment drain for the filled tank in

the main fuel cutoff switch alright so

moving around on the left side of the

machine will be again checking our

mounting points and go ahead and open

the door and take a look at our

batteries and our breakers just making

sure we don't see any obvious signs of

corrosion or any kind of damage this is

also the location for the main battery

disconnect switch and you can also check

your windshield wiper

it from there we'll go ahead and do the

same visual inspection of the

undercarriage that we performed on the

other side of the machine one thing to

note though is that keeping the

undercarriage clean can help with the

inspection process and can also help

with the longevity of the undercarriage

move along to the push arms and

cylinders checking all the mounting

points perform the same visual

inspection that we did on the other side

of the machine everything looks good

here that would conclude the ground

level checks. we can move on to the

second level checks so after completing

the ground level inspection the next

step would be to access the machine to

do our second level checks before we do

that we're going to inspect our access

points to make sure they're okay and

make sure that we're always using proper

mounting and dismounting techniques

whenever we access the machine so once

you've accessed the machine we can go

ahead and open the doors and do our

visual inspection of the engine

compartment so what we're doing here is

just scanning across to just check

everything make sure that there aren't

any signs of leaks that all the

connections look good and that there's

no debris if everything looks good here

can move down and check our engine

coolant make sure we have adequate fluid

levels so as we finish up here and move

towards the cab it's a good idea to

inspect the cab itself just take a look

at the windows the windshield wipers and

your lights just make sure nothing jumps

out at you moving up to the top of the

machine got the location the fuel fill

spot these machines utilize ultra low

sulfur diesel you also have your

hydraulic and transmission fluid fuel

spots when inspect your breather vents

make sure that they're in place and

finally you have the transmission fluid

check spot

so once we're finished on this side if

everything checks out we can move to the

other side of the machine and finish our

inspection okay so now that we've

accessed the left side of the machine

once we get the doors open we can

continue with our visual inspection in

the engine compartment like we did on

the other side all we're really looking

for it's just to make sure that the

connections are okay there's no leaks

and there's no debris from here we can

move to our air filter and just take a

look at our latches make sure they're in

place Guus up the location of your air

restriction gauge from here we can move

to the engine oil check spot and our

dampener fluid check spot the last thing

we'll do before we close the doors just

take a quick look at our fuel pre-filter

and just make sure that there's no

contamination from here we'll go ahead

and work our way towards the cat so now

we finish the engine inspection we can

go ahead and move to our final

compartment which is the location of the

DEF tank which you can tell by the blue

cap you also can check the depth level

in the sight tube that's how the

location of the DEF tank breather make

sure that's in place and also the

location of the exterior cab filter

finally before we enter the cab we just

want to take a quick look at our wipers

our lights and our windows and just make

sure that there's no damage everything

looks okay that would conclude the pre

operation inspection .