This unit is an old post war, mid '50's, ZW- 275w small badge, but not the next up R model. I inserted a 4-40 bolt in the control lever and removed the outer arm, then pulled the center shaft's pin so I could remove the wiper arm for the A lever to replace the bad roller. I touched up the red markings on the handle and installed the new roller....got it peened over very nicely...then the trouble started- getting the center shaft's wiper arm pin back in! I can't seem to get the pin back in the center shaft while holding the the whole assembly in...contact ring/spring/wiper arm and trying to push the shaft in from the outside...is there an art to this?! I've only done the one side so far...the D lever needs a new wiper arm roller too.
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If you removed the plastic handle, reinstall it.
Rest the rounded part of the handle against your stomach/chest, so you are pulling the wiper arm towards you. Your stomach/chest will hold the shaft in place.
It is not necessary to remove the arm to replace the carbon roller. Lionel advised against removing the arm. See Item six in the link below.
Olsens has their ZW service manual pages for the ZW back online. This page happens to be for the model "R" but the advice is valid for the older models too.
http://pictures.olsenstoy.com/cd/transfmr/pszw1.pdf
Hmmm, good idea with the use of my spare tire- lol. In hind sight{20/20!}, I can see why the removal isn't recommended...not a whole lot of room to move around down in there!
the contact ring has a tab that MUST be aligned with the slot in the case.be sure its going into the slot. then try c w burfle approach, handle against chest, squeeze it all togeather, align the wiper arm with hole in the shaft,hold the pin with a needle nose pliers and slip it in. little tricky but not hard to do.
the contact ring has a tab that MUST be aligned with the slot in the case.be sure its going into the slot. then try c w burfle approach, handle against chest, squeeze it all togeather, align the wiper arm with hole in the shaft,hold the pin with a needle nose pliers and slip it in. little tricky but not hard to do.
You know, there were a few times last night that the excess needed room wasn't being had and sometimes it was...bet the tab wasn't in the slot those times! Thanks for shedding some light on that...thought it was just me!...ok...it was but in a different way!
If you're 'fat' fingered, this won't work.
Since you've got it apart - hold the pin with slim needle nose pliers (you'll be able to figure the angle) with your right hand (I'm right handed).
Insert your left forefinger and index between the coil and the arm assembly. Using your fingertips align the end of the short contact arm assy (B-U or C-U whichever) onto the shaft and compress the spring until you can see the pin hole. As mentioned above, the outer handle should be against your chest. Rotate the handle until the pin hole lines up with the groves in the short contact arm.
Using the pliers insert the pin (smooth end) into the hole (trickey part, trail and error in the best way to use the pliers to hold the pin).
Push the pin in until the splines catch.
Get a bandaid or two for your fingers that held the sharp edges of the end of the short contact arm.
That's it. I've done it many times. My "colorful' vocabulary increases each time I do it.
YUP, johnsgg1 is the way its done..
Like John said.
As you are pushing against the spring make sure that the round brass contact ring's bent arm with the wire on it goes into the hidden slot under the throttle shaft. Sometimes it needs some gentle persuasion. After a few hundred of these it gets easier but you still should keep the bandaids handy.
There are ways to replace the contact rollers without removing the wiper arm assembly, check out this thread. "Cheap tools for an easier fix"
https://ogrforum.com/d...525#5512461181711525
Regards,
Joe Geiser
If you're 'fat' fingered, this won't work.
That's it. I've done it many times. My "colorful' vocabulary increases each time I do it.
Luckily I'm not that fat fingered...and "said colorful vocabulary" was soon to follow at that point, so I took a break since I was at the dining room table with the kids around!
Like John said.
As you are pushing against the spring make sure that the round brass contact ring's bent arm with the wire on it goes into the hidden slot under the throttle shaft. Sometimes it needs some gentle persuasion. After a few hundred of these it gets easier but you still should keep the bandaids handy.
Will do with the tab....and as always with me, home/work/garage...if blood isn't shed - I'm not trying hard enough...maybe it was too many years of watching "Tooltime", I don't know....