MPL Multipoint lock .. Lubbrication

[hdp160]

OK.. I've successfully removed the faulty MPL from my locked door without damaging the door or the original euro lock cylinder.
I've ordered a replacement gearbox/lockcase ... expecting delivery in a couple of days.
Do MPLs come fully greased? And how do I go about greasing the sliders and integrated mortise bolts Etc.
What grease is recommended.
Thanks in anticipation.

[RumballSolutions]

My experience is that most come factory greased, however.......depending on the manufacturer and your local weather conditions, you may wish to provide additional light lubrication.

If you live somewhere particularly cold, you may find that the base materials in some greases will harden/thicken and a fully synthetic grease may be a better option.

Remember that less is more with grease. Too much can cause as many problems as too little. Just a very light layer wiped across surfaces with a finger is more than enough in most instances.

[hdp160]

I'm in the UK... no real extreamly either way. I have several different greases in my work shop I'll take a look at their labels and see what best suits my local temperature range.. I'll take your advice small amounts are better... I don't think I will waste to much time choosing...

[billdeserthills]

Where I live in Arizona, I have found that for lock longevity, you need to be very careful just where you put any type of sticky
lubricant-- because it won't be long before it is encrusted with dust & dirt. Many times I will use the Super-Lube dry teflon spray
It is alcohol based, so after you spray it, and the lubricant dries, it won't attract a lot of mess to cause later jamming of moving parts

Another problem out my way is the high heat will turn lithium based grease to turn into a sticky paste, making it much worse

[hdp160]

Thanks for your insights... I will take care to use sparingly and apply the thinest grease I can find.. Dust is unlikely to be a problem here in the UK <grin>

[dll932]

If it faces a roadway, you might be surprised how much dust manages to get in. I agree, either dry teflon (or moly) spray or synthetic grease. You generally need grease when the friction is heavy.

[hdp160]

No luckily the door is on the side of my house about 30 metre from the road..... The replacement MPL arrived today.. It was late when I arrived home I will fit it tomorrow afternoon, I have several different greases I'll make a decision when I fit.

[billdeserthills]

I usually just leave them alone, when they are new, if you look you'll likely see there is no grease on the old one

[hdp160]

In conclusion, left the multipoint / lockcase alone. But applied some light grease to the sliders and the deadbolt surfaces as these were "dry".