Jfo137
New User
Posts: 1
Joined: Sat May 07, 2016 6:05 pm

Benjamin H-9 dive alarm restoration help

Thu Jan 12, 2017 8:15 pm

Hello all,
My first post here, I was able to find a Benjamin H-9 Dive alarm with the Navy anchor stamp and dated 6-27-42. I am in the process of restoring it and have come up with an issue. On each end of the motor shaft there is a vertical lubrication cup which has a spring loaded cotton wick. When dissembling the alarm the cups have a grease like material in them. The problem is I don't know if that is grease of solidified oil. I don't know if i should use grease or some type of oil when i put in back together. Any help or suggestions would be greatly appreciated!
PART_1484186830078_1484186830195.jpeg
PART_1484245122058_1484245122279.jpeg

User avatar
Model L
Registered User
Registered User
Posts: 270
Joined: Wed Dec 28, 2016 4:19 am
Real Name: Marco P
YouTube Username: Marco Pulone

Re: Benjamin H-9 dive alarm restoration help

Mon Feb 06, 2017 5:52 pm

dont trust me on this, but i'm pretty sure that that is solidifyed oil
Resident of Portland/Beaverton Area, And own a Model L
14 years old.
I LIKE SNOW

Storm_master
Read Only
Posts: 34
Joined: Wed Jan 18, 2017 6:23 am
Real Name: Luke Winterble
YouTube Username: Fireman24 detector

Re: Benjamin H-9 dive alarm restoration help

Mon Feb 06, 2017 6:06 pm

That oil is so contaminated that it turned solid? What? mustve been in salt water or something.

User avatar
Unit of Civil Defense
Registered User
Registered User
Posts: 187
Joined: Thu May 15, 2008 3:11 am
Location: Topeka,Ks.

Re: Benjamin H-9 dive alarm restoration help

Tue Feb 07, 2017 3:37 am

That is what old Lithium grease looks like......since that unit shows a 1942 date that would have been , more than likely, bearing grease due to it being readily available during the material rationing that took place. Clean the old grease off and re-grease it....should work for another 75 years!
A lubricating oil would not have been used as it would have seeped out OR the cotton wick would always be saturated with oil, constantly dripping until it dripped dry. Oil that old would be very dark, like engine sludge, due to the break down of its properties and being exposed (even if very limited) to moisture.
Rheems1 wrote: I petition that everyone who joins the board should have to put there age or year of birth in thier signature...32 here
....53 and not too old to still have fun 8)

User avatar
Daniel
Registered User
Registered User
Posts: 4076
Joined: Sat Jun 03, 2006 3:37 am
Location: Beautiful eastern Oregon

Re: Benjamin H-9 dive alarm restoration help

Tue Feb 07, 2017 3:57 am

I don't know about the grease, but if the motor runs and as long as the stud on the diaphragm isn't too worn, the klaxon should be good for many more years.
Lex orandi, lex credendi, lex vivendi.

Return to “Other Warning Devices”

Who is online

Users browsing this forum: No registered users and 4 guests