Darryl Keil Last Activity 2025-02-12 2:48 PM
2 replies, 1131 viewings
 
back
Navigate threads:
< Previous Thread :: Next Thread >
 
^ Top
william wells

Posts: 7

Joined: 2008-02-13

User Profile 
Subject : locked up pump
Posted : 2010-08-02 6:37 AM
Post #36122
Due to humidity and not using it for a month when I went to use my vacuum press it was bound up. Darryl talked me through the same problem a couple years ago with success. I did the same thing this time, took the pump apart and sanded the disc and cover to remove light rust with 320 and re assembled. The pump is no longer bound up but now it will not reach 25 lbs pressure, it will get to 22-23 and even after lowering the pressure switch it will not shut off by itself. I plugged the end of the hose with the same results so its not a bag leak and the pump has a different sound than it used to . Any suggestions?
Thanks,Bill Wells


 
^ Top
Darryl Keil

Posts: 1454

Joined: 2003-05-22
Location: Maine

User Profile 
Subject : RE: locked up pump
Posted : 2010-08-02 9:42 AM
Post #36123 - In reply to #36122
William,

In cleaning the chamber and the vanes wearing from the corrosion build up, the tolerances may have opened up a bit lowering your pumps vacuum capacity. Be aware that 22-23HG is plenty of vacuum for achieving good pressing.

The first thing I would do is to set the pump aside, disconnected from the bag, and let it run for an hour or two, non-stop. This will help the vanes to re-seat themselves and coat the chamber with carbon dust.

If the vacuum level does not improve then I would set the switch to shut the pump off at 20HG. This is still a very acceptable vacuum level to work with. You can always buy new vanes to increase the vacuum level but I dont think it necessary at all.

Darryl Keil


 
^ Top
william wells

Posts: 7

Joined: 2008-02-13

User Profile 
Subject : RE: locked up pump
Posted : 2010-08-02 12:30 PM
Post #36125 - In reply to #36123
Thanks Darryl, your advice was right on the money. I let it run for an hour then tried it again and it shut off at 24lbs.
back
Navigate threads:
< Previous Thread :: Next Thread >
Legend      Notification  
Administrator
Forum Moderator
Registered User
Unregistered User
 Toggle e-mail notification


Logo by MAZY
Running MegaBBS ASP Forum Software v1.5.14b public beta