Third engineer jobs...How to adjust tappet clearance for ZJMD MAN B&W generators...

hi everyone welcome to our marine knowledge channel this is your sailor basha so this video is also related to maintenance work

So this video is actually for third engineers mainly.

So every generators we need to do taput adjustment.

So each and every generator, they have a specific, I mean, specific procedure to follow to take a taput clearance.

So this is ZPMD MANBRW generators.

For this generator, I will try to show you how to take, how to adjust taput clearance.

So go and check the video.

This is the generator which we are going to take and adjust the tapper clearance.

This generator maker is ZJMDMANPNW.

The idea for taking the tapper clearance will be same but the procedure for adjusting the tapper clearance will be different with regards to the maker.

of the engine so for this generator the initial procedure is the first you need to bring the unit which you are going to do the tapper clearance to tdc that is before injection it should be the particular unit should be before injection so to confirm that you can check the roller of the fuel injection pump should be before the peak

and also you can cross check in the flywheel where you can see the marking of number 5 unit is in TDC so we are going to take number 5 unit and it is clearly shown in the flywheel and another way is you have to turn the pushrod of that particular unit so that the

pushrod should turn freely this ensures both the inlet and exhaust valves are in close position okay so first step for adjusting the tapper clearance for this kind of generator is you have to loosen the adjustment screw on valve bridge and rocker arm so the first step we are going to do now loosen the adjustment screw use a big screwdriver

open the lock nut and loosen the adjustment screw this is how you have to do just turn it and go to the valve bridge side and again do the same thing loosen the adjustment screw for both inlet and outlet valves so first step is done

next step is you have to place the filler gauge so for this unit 0.50 is for mm is for inlet and 0.9 is for exhaust so we are keeping the filler gauge between the valve spindle and rock ram so once you keep the filler gauge in that place then you have to tighten like you have to

close the you keep the filler gauge in place and you have to tighten the lock nut tighten the lock nut on the rock ramp side which we are going to do now so you can see the filler gauge is moving easily it should not be very tight and it should not be very loose you it has to just go between the area freely so once that is done what you need to do is as i said you have to

lock and tighten tighten the lock nut so this is how you have to do while holding the tightening screw you have to be very particular it should not turn so let the feeler gauge be there then we go and adjust the clearance between the next okay the same size for both inlet will be always 0.5 and 0.5 for this type of engine

so again we are fitting the filler gauge between the valve bridge and valve spindle so again you have to tighten it tighten the tightening screw so that the filler gauge should not go very freely or it should not go very tight so this is what we are checking so now we have checked the filler gauge is going

a good way now hold the tightening nut tightening screw should be hold with the help of screwdriver big screwdriver and tighten the lock nut so that's all this is how you have to set the tappet for the inlet side so you can see the filler gauge is going properly

it is not very tight and it is not very loose so you for this kind of engine you have to set for both the spindle guide for the spindle guide so next we go for the exhaust side first we completed the inlet and now we go for the exhaust so a for the exhaust side the maker had recommended to have a gap of 0.90 mm for inlet it is 0.5 and for the exhaust it is

0.9 the same way we follow for the exhaust valve also so first you take the proper size of filler gauge which is 0.9 0.90 mm for this kind of generators so the filler gauge is ready so next what we need to do is you have to first check the clearance between the valve bridge and valve spindle

which we are going to do now so same way sorry for the video is little shaky okay so first the same procedure just keep the filler gauge between the valve spindle and valve bridge just keep 0.9

it is okay next you have to hold the tightening screw with the help of screwdriver and tighten the lock nut with the help of spanner so ensure the 0.9 is going in a proper way it should not be very tight or it should not be very loose that is what you have to keep it in mind so hold with the help of screwdriver we are adjusting now

because it is going very loose so we are adjusting to go a good way okay now it is going properly now we can lock the lock nut hold the screwdriver and just hold the tightening screw with the screwdriver and lock the tighten the locking nut so first what is done let the feeler gauge be there only

and we have to cross check one more time whether it is okay or not yeah it is perfectly fine and next we have to go for the other spindle guide other valve spindle okay so again 0.90 keep the filler gate between spindle and bridge so just

tighten the adjustment screw so that the adjustment screw hit the feeler gauge once it is hit then close tighten the locking nut and as i said earlier hold the tightening screw with the screwdriver and tighten the locking nut again now we have to check whether it is moving properly or not

okay that's all here we are done with adjustment of tapper clearance for this particular unit okay done

so after watching this video you must have got some idea about how to take how to adjust tappet clearance for zpmd man brw generators if you have any queries please put in comment box definitely i will reply you keep supporting bye guys