Question about lubrication of trucks and drive shaft

hello guys

I wonder how often did you lubricate your trucks?

do you have automated lubrication or maybe dry one with PTFE("Teflon")

and question in which i am more interested

since you have long overdrive ratios and high travel speed how often do you need for lubrication of drive shaft

and what kind of lubrication do you use ?

here my family deal with construction trucks and since they worked in heavy condition we lubricate drive shaft it 2x week

we use this product for more than 7years
before we had valvoline



and for all automated lubrication we use P5 liquid lubricant also by total

ALC works about every 1.5h for 6 minutes

most trailers dont have it

some have and it works by pressing of brakes for example every 10x of brake pressing it start to lubrication

 

hello guys thanks for your comments

what is U-joint is that include whole driveshaft or only joint? so you need to weld it ?

will more lube reduce this problems with joints?
i have never heard for something like this most of eu road trucks have direct drive gearbox so there is smaller number of rotations and there is no such problems

we only have problems with cracking of drive shaft on some construction trucks.....

now most of new eu trucks have dry drive shaft it is easier for maintenance but it is only good while truck is new , and i don´t like it , mercedes is introduced this on first actros in 1996 i think there is no one before them at least here

we have one mercedes sk with dry Teflon system all round except drive shaft it is nice but those plastic parts are expensive to change and we need to change them

ALC is also good thing while is truck new but latter( trucks old 20-25years) there is a lot of cracking hoses those pipes are not good and elastic

our 24y old mercedes still have alc and works fine we had 2repairs of hoses in last 4years and once hose cracked because junction box behind it was clogged

man f2000 have problems with ALC controler so lot of trucks have overbridged control and can be switched manually

my father have another mercedes sk 6x4 3axle tipper before few years and pipes to front axle were blocked for a years and only 3months after we bought truck we need to change front axle

so to preventing problems and inspecting we have this and you remove hose and put this and lube it manually every few months

 

and i forget to write i have once change "carrier bearing" on mercedes 2538 6x4 tipper with central axle trailer used to pull very heavy loads

truck had 800 000km

edit : usually on road trucks this part is not designed to be replaced( on construction on some need to be fixed later) so it is really hard to change it