Question about Promaster Quick-Release Shoe 6300/6400 3516

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My Promaster 6400 Quick release lever is stuck open. I could not lock the shoe to the head. Without this lever locking the shoe it is not safe to use this tripod with my DSLR camera on it. Help please.

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Posted on Jan 02, 2017

kalaci
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Try to put some silicone oil to the thread the disc is turning on. The oil slowly penetrates into the gap and lets the disk rotating. Car dashboard shine sprays often contain silicone oil, check the ingredients.
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Posted on Nov 14, 2008

tbreeze47
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SOURCE: I have a Nikon P90 Camera which does not have a

I couldn't find much on this, but I did find this add for both a P90 and 7500DX, and I'm thinking there's no compatability, since the P90 isn't listed in numerical order- could be why they're selling them. As you've related, the D50 is listed as compatible.
photo video/for sale - western slope - Colorado - CraigsList ...
Do not use 35mm any more and hope someone can use this great camera. ... Nikon coolpic p90 Camera (Grand junction) $120 ... Promaster 7500DX Digital Flash for Nikon Fits Nikon D70, D70s, D50, 8400, 8800 Works great, used only a few ...
Possibly you could use some device. You might call a few local camera shops to pick the tech's mind, they might know offhand. Also, there are digital photo clubs that might be worth visiting or calling some of the members. They are happy to share.
Good luck, and hope this helps.

Posted on Apr 22, 2011

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2 Answers

In the Gitzo GH2750QR head the quick release plate got stuck. What to do?


Is it the plate itself that is stuck, or is it the lever that needs to be moved to release the plate ? From a brief look at images of the item, it looks as if there is a small locking lever connected to the actual release lever - has this been freed, or is it that which is stuck ?

Nov 13, 2016 | Gitzo Gh2750qr Series 2 Magnesium Off...

Tip

HOW TO FIX A BUGABOO BRAKE



A bugaboo brake fault can be caused by any one of the three parts that make up the brake system.

1/ The cable and cable adjustment screw.
2/ The brake lever assembly.
3/ The brake shoe assembly.

I've listed the three parts in the order of most likely to cause your brake problem. First I'll give a quick over view of how the brake should work then we'll look at the 3 parts in more detail.

Lifting the brake lever up pulls up on the brake cable, a ratchet in the lever keeps any tension until you press the release button in the centre of the lever. The cable pulls up on a toothed brake shoe and via a connecting axle a matching brake shoe on the other side, these brake shoes engage a set of matching teeth on the inside rims of the rear wheels thus locking the wheels. A spring on the cable side brake shoe disengages the brake shoes when the release button disengages the ratchet in the brake lever. This is a simple system with most parts in plain view so you can see the operation of all parts except the ratchet inside the lever.

1/ The brake cable is the most likely cause of most brake problems. Like all cables they can stretch, stick and snap. If the brake lever seems to work OK but the breaks don't hold very well try adjusting the cable tension by winding out the cable adjustment screw at the bottom of the cable thus taking up any slack and bringing the brake shoes up tighter into the wheel rims. A sticky or broken cable should be obvious by observing the brake action as you pull and release the brake lever. Run some sewing machine or 3 in 1 oil down the inner cable wire if it's sticky. If broken you can make a new cable yourself. You will need a mountain bike cable a solder less nipple and 75 cm of outer cable if yours is damaged. My local bike shop sells these parts for $10.50 they have to order in the nipples. You can reuse the cable adjuster my local bike shop can get them for a $1 each!macnutz_32.jpg

The Bugaboo has an odd double nipple design. Your replacement cable will only have one end the same as the Bugaboo. The other end will be either bare or have the pear style nipple. This you would cut off. Using the old cable as your guide, you cut the new outer cable to 75 cm and fit the ferrules supplied with the kit. The matching nipple will be the top (lever) end of the cable, reuse the old adjuster and slip it on to the bottom end followed by the solder less nipple. Set the nipple 89 cm from its opposite. Depending on the cable and nipple you buy you may need to drill the plastic parts out to ease the fit I also cut the screw head off to get a better finish some nipples come with internal grub screws.
If this sounds to complicated just print this out and give it to your local bike shop. Here's one I made all ready to go!
macnutz_34.jpg
2/ The brake lever assembly is made up of the lever, a release button, a small compression spring and the outer bracket that holds it all on the handle. The bracket also holds the left handle release button. The most common problem is the ratchet fails to hold and this is a safety issue as it can fail quite suddenly!
Before reading any further have you ever lubricated you brake lever? If not do so I have quite a few brake lever faults come to me that are just sticky buttons. Use a silicone spray not WD40. Now back to real brake problems.
Either the small compression spring has broken (unlikely) the screws holding the assembly loosen (hopefully) or the teeth on the button and outer bracket have worn down (most likely). Try first to tighten the two screws, if that does not help take the two screws out. It's a simple mechanism the button sits inside the lever it can move in and out of the lever but can't turn as it has splines that lock it to the lever. A compression spring pushes the top outer edge of the button against the inner side of the bracket; they both have serrated teeth that lock them together. The raised centre of the button protrudes though the bracket. Pushing on the center of the button disengages the interlocking teeth of the ratchet. The compression spring can be found in most hardware stores, worn ratchet teeth can be reshaped with a rotary modeling tool like the Demel.

3/ If the Brake shoes are the problem it will be obvious,broken expansion springs are easily replaced, stripped threads on the cable adjuster can be sorted at your local bike shop and broken parts either repaired by a plastic welder / bumper repair shop or replaced with parts from a salvaged frame.
The most common problem is one shoe engaging before the other (usually the one opposite the brake lever) this is caused by the aluminum connecting shaft getting a slight twist in it. Remove the wheels, take the screw out of the connecting shaft of the shoe that engages first. Lever the shoe out of the aluminum shaft with a large screw driver. Chisel the alignment splines off. refit shoe but don't put the screw in yet. Refit wheels, now put the brake on and check that both wheels now lock up. While brake is still on fit screw back drilling a new hole if necessary, Release brake and adjust brake cable so break shoes just clear the wheel rims, Check brake operation if you find you cant get the lever to a suitable lock position back the cable off a bit more and try again,

on Jan 14, 2011 | Bugaboo Cameleon Jogger

1 Answer

On the front of the head there is a gray handle to lock and unlock. I can not unlock it. The handle will not move. What do I need to unlock it? Thanks/Scott


First of all, thank you for posting a genuine tripod query ! If you mean the lever to free the quick release plate, there may be some form of interlock to prevent it coming undone accidentally - have a look underneath.
If that is not the answer, try this link - they may be able / prepared to help you.
ProMasterHD Movie Head 8656

May 12, 2016 | Promaster Professional HD Movie Head 8656

1 Answer

My elderly mum has a Kingavon safe 25. The locking bars are stuck out & it will not close. Inputting code changes nothing. Key lost. Is there anything we can do?


kingavon safe 25 instructions Safes Questions & Answers ...

www.fixya.com > Forum > Tags > kingavon safe 25 instructions
Kingavon safe 25 instructions questions and answers. ... head screw drive to the upper black handle plate n pop it out safe will open... when done put bar back in and safe ...My Sentry 3150 safe is closed and locked and the lock/dial is stuck.

How to crack a safe without any tools?! - YouTube

? 5:46
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Oct 19, 2011 - Uploaded by mepickulongtime
Detailed guide on how to open a digital safe. ... Can you use a magnet to move that spring down that the digital lock controls? ...I don't think so since the safe is made out of metal and it wouldstick to the safe but have little ...

Nov 24, 2015 | Locks & Locksmithing

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1992 geo prizm trunk lock will not lock


The lever arm behind the bodywork that is operated by turning the lock has either rusted and broke or the spring has rusted and fell off

Dec 20, 2013 | Cars & Trucks

2 Answers

JR3050T blade lock lever is stuck


Put a blade in it.
This will release the locked open feature.

Dec 30, 2009 | Makita JR3050T Recipro Saw 9 Amp

1 Answer

I have a nikon d80. shooting with a sb-600.. the flash is stuck. i can't take it off the shoe.. if the pins are jammed with the contact, how can i release them to remove the lens


There is only one pin that engages the shoe - the rest are simply pressure contacts. The pin that engages the shoe is strictly for locking the flash to the show, and is operated by the lever on the back of the flash - directly above the shoe.

Look closely at this area to find the lever. Slide it fully away from the "LOCK" position. This causes the pin to retract from engaging the hole in the shoe and return into the flash. Simply slide the flash towards the rear of the camera to remove.

I hope this was helpful to you.

Aug 13, 2009 | Nikon SLR D80 Digital SLR Camera Digital...

1 Answer

Need a part for an Onyx Professional Video Tripod (made by Ambico) and it is a model V-0540. I can't think of the correct term for part but it is the "shoe" that attaches to the bottom of the...


Hi misguy,

I´ve got the same problem. with google I found:

www.SpartanPhotoCenter.com

QS-14 Quick Release
for Ambico tripods and others using a square dovetail with a 41mm wide opening. It fits standard 35mm or video cameras.
qs-14.jpg 1 2 3 4 5 Promaster 3502 QS-14 $ 12.99


Maybe, it solves your problem.

For me the price and especially shipping to Europe ist to much, so I´m keeping searching.

Yours Uwe

Jul 30, 2008 | Cameras

1 Answer

Bogen Manfrotto 3047 head


Dear spiderinkart,
To get the camera to secure properly to the release plate make sure that the bolt is screwed entirely into the camera bottom and then there should be a larger knob that rotates around the bolt that tightens down to the camera body. What I do to get a really tight fit is point the arrow on the bottom of the release plate labeled lens (that arrow when properly mounted should be pointed towards the front of the lens) to a 45 degree angle to the left of the lens, then I snug down the knob, and then I grab the release plate and turn it until the lens arrow is aligned with the front of the lens. As far as quick releaseing the camera from the legs when secured on the release plate you should be able to pull the lever away from the head and it should simply release the camera with the plate attached.

Sincerely,
Agent Allan
Go Ahead. Use Us.

Mar 16, 2008 | Bogen Communication Bogen Manfrotto 3047...

1 Answer

3030G pan tilt head


The little brass arm is supposed to be a safety switch. In one position the release lever bumps into the brass are and will not turn so the quick release willnot come off. In the other position the brass arm is away from the lever so it swings freely and the quick release plate will come off. With the brass arm open the quick release lever shoulde lock open until you push the quick releae in place. If none of this seem to work on your head, you may be missing parts. Try www.bogentripodparts.com

Feb 19, 2008 | Bogen Communication Bogen Manfrotto 3030G...

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