[County5665]

I took the Jet Gun in to a hydraulic shop for fittings and also a new hose (huge kudos to Rodney at CanLand Hydraulics in Belleville ON- superb customer service and product knowledge). Quick-connect S/S fittings and hose good for 3,000lbs.

Another local outfit in Belleville welds polyethylene, so the tank repair should be ready in a few weeks.

But, I could not resist a trial. Lubed it thoroughly, took off the two "Pump Caps" (pump cases- missing one O-ring but mirror-shiny piston bores), turned it over by hand then re-assembled, bolted it to the 5665 and filled the tank.

Well, well, well! After spitting out a couple of pints of rusty water through the hose, it then gathered steam and started spraying up to 20 feet with the gun. A pleasant surprise.

It was puking water from every orifice: I'm going to have to get both a new strainer threaded plug and also figure out how to replace the front seal along with the tank repair. A lick of paint and s/s fasteners, and it will be showroom-floor condition:ROF

Built when Gravely was the Standard of the World.

/if any MTF Gravely guy would have a MA 709 Operator's Manual, I'd be greatly obliged for a .pdf.

 

[County5665]

At p. 23 in the Commercial 10A/12 Owner Manual (9/69), there are instructions on operating the sprayer. Low RPMs is all it takes to generate a lot of PSI!

 

[County5665]

I got the tank back from the welder, so getting ready to go.

I found this plate riveted to the wheel bracket as I was cleaning it. Any thoughts as to its significance? Manufacturer code? Plant production machinery code? An institutional inventory number?

 

[County5665]

I have identified the spray gun- it is a TeeJet GunJet AA2A. Still being manufactured. A fellow in AZ on eBay even sells a rebuild kit!

https://www.teejet.com/CMSImages/TEEJET/documents/catalogs/spray_guns.pdf

And the pump itself takes four No. 218 Viton O-rings, which will work with ag. RoundUp. My hydraulic shop had no trouble in supplying them from stock.