TELSTA A28D Bucket controls acting up - Contractor Talk - Professional Construction and Remodeling Forum

Oldmanfunk · 09-05-2009, 08:40 AM

Hello everyone and thank you for allowing me to visit your forums.

Recently I purchased a 1994 F-450 with a A28D Bucket on the back for the purpose of changing out light fixtures (under canopy / light poles) at my customers locations. Problem I'm having with my truck is that the controls on the boom are acting up intermittently. The controls down low in the right rear panel all work fine. The truck came with the complete TELSTA owners / service manual which includes a complete wiring schematic, but I'm still lost of where I should start.

Anyways, I was hoping to pick the brains of the guys that work on these trucks and maybe they will be able to steer me in the correct direction. I'm hoping that this is a common issue and that there is a common fix.

Thank you in advance for any and all help that is sent my way...

Lon's Electric · 10-12-2009, 11:09 AM

Any luck finding those wiring diagrams?

Cole82 · 10-12-2009, 05:39 PM

It's probably the switches are worn out. They get used a lot more than the truck mounted switches. I have to replace the boom switches on our boom truck about every 3 years. The switches are very cheap and easy to repair on our.

Oldmanfunk · 10-13-2009, 05:33 AM

Quote:

Originally Posted by Lon's Electric

Any luck finding those wiring diagrams?

I have a complete set of manuals which includes wiring schematics. I am a NIASE (I'm dating myself) certified mechanic and an accomplished Experimental aircraft builder, but these wiring flow charts for this truck are enough to make you drink. Anyways, I believe I found the problem. Looks as if a couple of the spade connectors in the main control box are compromised. I'll be taking digital photos of the connections and then systematically replacing all the connectors 1-by1. Must be over 100 in this box.

Oldmanfunk · 10-13-2009, 05:34 AM

Quote:

Originally Posted by Cole82

It's probably the switches are worn out. They get used a lot more than the truck mounted switches. I have to replace the boom switches on our boom truck about every 3 years. The switches are very cheap and easy to repair on our.

Replacing the switches wouldn't hurt. I'd also like to replace the 3 small relays in the main control panel where the boom mounts to the bed of the truck. Can you please share with me where you buy your parts.

Thanks in advance.

Cole82 · 10-13-2009, 07:25 AM

Square D and the owner of the local place is a customer of mine.

I just bring the old ones in and they give me the new ones.