4
22/07/2022
The product is fine, fit for purpose. The unit is only about half the weight of similar pull-up and squat gyms on the market as it uses lighter oval tubular material, but comes with a set of strengthening plates for every important screw joint. The manual is OK, easy to follow and one is advised to refer to it as several items need particular orientations during assembly.
However, the assembly took much longer than expected due to an odd manufacturing fault accomodating of which required some machining on the bent height-adjusting sliding parts of the frame that hold the pull-up cross-bar. People with no mechanical resources would be rather upset or return the unit, or worse, use it unsafely with the locking screws not fitted correctly. Hence, I decided to write this review up.
On left side the bent adjustable bar would slide in OK, but both the locking nuts would jam after a turn and a half before they were fully screwed into the provided welded-on nut on the inside of the frame. This was considered unsafe that way; there is a reason these lock screws are provided in pairs for both sides - a total of four!
The assembly on the right hand side had no such problem. First I thought it was some excess powder coat (hammer finish) paint that got onto the threads but no, if the bars were not inserted, both the locking nuts went right in without any problems.
On closer investigation I found the reason for the interference - hole pattern on the vertical hollow frame with the welded on nuts was not on the centerline on the left side. The through hole on the other side was perfectly in-line with the nut, but offset from the vertical centerline. When the whole on the bar was vertically in line with the screw-hole, it did not line up with the hole in the frame.
Side to side difference was about 0.5 mm, but with the tight tolerance the holes were drilled in the sliding bars the thread was forced into mis alignment and it was enough to cross-thread the screw in the nut. I have tried this with either of the identical slide bars, if by chance the other would fit, with no luck, as the sliding bars were properly made to a template with their through-hole pattern perfectly in the midline. I forgot to take a photo of this at the time.
The only reasonably convenient way to fix this was to enlarge the holes in the sliding bars from 10mm to 12mm which allowed any off-center screw to go home straight in and be tightened without rubbing on the frame. The slight jiggle vertically is not noticeable when the lock screws are tightened.
However, I did not have a 12mm drill for metal at home, so it was a trip to Bunnings next morning and a hit to my wallet as these larger drills are considered outliers for hobbyists and even single ones are at a cost of a whole common smaller drill kit which usually go to sizes up-to 10mm. I found a smaller kit with HSS bits in 4 sizes up to 12mm that was acceptably priced.
The rest was simply enlarging all the holes in both sliding bars (to ensure they can be mounted in the frame at either side in future), de-burring them, applying rust prevention to the now exposed metal and I was able to continue the assembly.
So, except for this detour, the assembly was not difficult, but improved QC at the Chinese factory would prevent this from happening…
Overall, I am not unhappy with my purchase, have been using the Black Lord Chin-up station regularly to stretch my shoulder after an unfortunate cup-tear 18 months ago I have nearly recovered from, but still have some range of movement limitations. Not yet ready to make pull-ups but it is improving…
Cheers!
Peter