Center boom maintenance

[Keno]

A couple of the center booms are hard to turn. What kind of maintenance can I do to these to make easier to use? Looks like there is a wheel of some sort up there, do those require replacement at certain intervals?

 

[Randy]

Post a picture of what you have. It all depends on which center boom you have. I grease mine about once a year.

 

[Keno]

Forgot to attach the picture

Post a picture of what you have. It all depends on which center boom you have. I grease mine about once a year.

 

[MEP001]

There's a grease fitting in there, but judging by the ring on the plate left by the wheel I'd bet they're done. I run a wash with those same booms, most of them are extremely stiff, so I'm replacing them all with Dralco SS ones.

 

[cbchevy4x4]

Forgot to attach the picture

View attachment 6642

Any body know who made or makes this boom? These are what i have. Unfortunately dad passed 2 years ago, he could have told me exactly who he got it from and probably exactly what he paid for them.

 

[DPD36]

Those look exactly like our Mark VII booms. We did not have grease fittings until I added them. Prior to the grease fittings I would pull them apart every couple of years and clean up the pipe/shaft in the middle. It is a chore unless you have a socket and impact. The nut is nylon filled and tight all the way out. 1-13/16" socket and a 1/2" drive impact makes it easy.
There is a bushing on the shaft that is delrin or some similar material. Mine are worn, but work fine when everything is clean.

 

[Keno]

It probably is mark vii, the pump stand is mark vii

 

[Keno]

I’ll have to get a man lift to get up there and check it out probably. Thanks for the info on the tools and supplies needed.

It maybe worth replacing later, I would eventually like dual center booms

 

[MEP001]

You might look into dual Z booms instead. With the dual center booms customers have to pass one hose around the other. I can't even imagine that battle when the people in my area put the gun away like this: