ICEINSPACE
Moon Phase
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Waning Gibbous 91%
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14-09-2015, 04:03 PM
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Registered User
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Join Date: Dec 2008
Location: Mt. Waverley, VIC, Australia
Posts: 741
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HEQ5Pro maintenance
Hi,
I'm trying to dismantle my HEQ5Pro so I can re-grease (or probably just grease) the bearings. Has anyone any good method to undo the black round retaining nut on the DEC axis - the nut just behind the dove-tail head. I am trying with long nosed pliers inserted in the opposing holes on the nut. I can't budge it!
Robert
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14-09-2015, 04:36 PM
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Ebotec Alpeht Sicamb
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Join Date: Feb 2010
Location: Toongabbie, NSW
Posts: 1,965
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I use a small punch that fits the holes, angle it against the wall of the hole in the direction I want it to go and tap it lightly with a small hammer. Be sure to use light taps and alternate between the two holes.
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14-09-2015, 05:42 PM
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Join Date: Dec 2008
Location: Mt. Waverley, VIC, Australia
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Thanks for that Steffen. I'll give it a go.
Robert
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14-09-2015, 05:45 PM
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Join Date: Sep 2011
Location: margaret river, western australia
Posts: 6,070
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An alternative to a punch, if you don't have a suitable one, is the plain end of a drill bit that is a neat fit in the hole.
raymo
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14-09-2015, 06:33 PM
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I had a suitable punch Raymo, but thanks for the thought. And yes, I got it apart - after quite a bit of tap-tap-tapping.
Many thanks Steffen and Raymo.
Robert
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14-09-2015, 06:48 PM
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Join Date: Dec 2008
Location: Mt. Waverley, VIC, Australia
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OK Guys,
Would you believe - next problem. The grub screws holding the counterweight collar. They're deep down and only the allen-key can reach. I reckon I'll twist the key into a spiral before any of those little !@#$%^s will move. Any thoughts please.
Robert
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14-09-2015, 07:09 PM
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Join Date: Sep 2011
Location: margaret river, western australia
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If you are afraid of breaking off an Allen key, either use a small adjustable spanner [shifter]on the key, at a 45 degree angle across
the 90 degree bend in the key, so the torque is only on a short section of the key, and it therefore won't twist, and possibly snap off, or get a short straight Allen key that clicks onto the square end of the appropriate ratchet type tool.
raymo
Last edited by raymo; 14-09-2015 at 07:13 PM.
Reason: correction
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14-09-2015, 07:43 PM
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Registered User
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Join Date: Dec 2008
Location: Mt. Waverley, VIC, Australia
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The grub screw is quite deep in the collar and I have to use the long leg of the key which is quite flexible as the key is only 2.5mm. As I try to turn it I can feel the twist in the key. I have also tried tapping the key while applying torque but to no avail. Methinks this unit was put together by a butcher of the non-meat variety.
I would have preferred to leave the unit alone except it is quite noisy and has started stalling while slewing. Hence the decision to work on it.
Robert
UPDATE: A drop of Penetrene, a sustained twist and bingo!
As suspected, very little grease on the cone bearing. Will continue on it tomorrow.
Robert
Last edited by Robert9; 14-09-2015 at 08:18 PM.
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14-09-2015, 07:57 PM
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Join Date: Sep 2011
Location: margaret river, western australia
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If the key is of reasonable quality, it is amazing how far you can twist them. If it is a neat fit in the screw just keep twisting. It will come with
a snap, and maybe make your finger sting a little. You can use a shifter on it, of course.
raymo
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14-09-2015, 09:56 PM
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Raymo, perhaps you mis-interpreted my "Bingo" in my "UPDATE". It meant I managed to undo the blighters. Yes, I used a little shifter to rotate the key and just maintained a steady pressure until it moved. Thanks again though for your helpful advice.
Robert
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14-09-2015, 10:59 PM
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Join Date: Sep 2011
Location: margaret river, western australia
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I didn't misinterpret the update, I didn't see it, but I'm glad you got it undone.
raymo
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15-09-2015, 12:16 AM
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Ebotec Alpeht Sicamb
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Join Date: Feb 2010
Location: Toongabbie, NSW
Posts: 1,965
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Make sure you wash out the old gunk before regreasing. I usually use a spray called brake cleaner/degreaser or something like that. It foams and smells good
It leaves all parts completely free from dirt and grease without attacking paint or plastics.
For regreasing I use my trusty old Mobilgrease HP (aka XHP 222) which will not separate, run, harden, dry out or anything, but there are lots of other quality greases that work well.
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15-09-2015, 07:30 AM
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Join Date: Oct 2013
Location: Wonthaggi Vic
Posts: 625
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Don't use a punch or the 'end of a drill please. get a 'C' spanner that fits from a tool supplier. If you use those you'll damage the holes in the nut and in time it will become useless.
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15-09-2015, 09:25 AM
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Ebotec Alpeht Sicamb
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Join Date: Feb 2010
Location: Toongabbie, NSW
Posts: 1,965
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That's easier said than done. Refer to this image from Astro Baby's website:
http://www.astro-baby.com/heq5-rebuild/dec010.jpg
How do you get in there with a C-spanner?
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15-09-2015, 01:47 PM
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Join Date: Dec 2008
Location: Mt. Waverley, VIC, Australia
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Had to use the punch Simon as the nut was inaccessible to anything else including a C spanner. Its really a job for a specialist tool. I was very gentle and there is little obvious damage to the holes. Hopefully, I won't have to pull it apart again.
Steffen, I'm cleaning things in Shell X2 solvent which I have on hand and I have some BP Energrease L lithium based grease, which I think should do the job OK.
Thanks again for all the input. Much appreciated.
Robert
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16-09-2015, 04:29 PM
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Registered User
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Join Date: Dec 2008
Location: Mt. Waverley, VIC, Australia
Posts: 741
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Purrs like a kitten.
Robert
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