Heng long PzIV won't shoot

Discuss the good old Heng Long electronics here, whether its mods on them or anything else, it goes here!

Postby Grey Knight » Tue Aug 02, 2022 1:10 pm

Hello all, I've got a issue with my PzIV , everything works but the gun push the button on the TX and nothing happens. I've had it about a year and a half and only checked it when I first bought it,( it was new in the box) I don't like dry firing anything so I don't believe I tried it ,just drove it around a little. Took it apart ( marked all the plugs ) did some cosmetic mods,stowage bin, long barrel, mantlet etc, then set it aside waiting for paint(,it's a 6.0s bye the way ) About a month ago my son came to visit and wanted to play with the tanks.I also have an HL M4a3 so we start messing around and no boom.I've checked the connections,wires, motor and gears everything seems to be alright what am I missing? HELP...Chuck

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Postby Tiger6 » Tue Aug 02, 2022 1:14 pm

did you turn on the firing switch under the turret hatch?

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Postby Grey Knight » Tue Aug 02, 2022 1:52 pm

Tiger6 hello,the only thing under the commanders hatch is the plug for the IR

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Postby Tiger6 » Tue Aug 02, 2022 2:32 pm

Ah, you didn't specify that its the IR version - Can't help you with that I'm afraid :(

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Postby Grey Knight » Tue Aug 02, 2022 5:03 pm

Oops,it has both BB and ir but I don't plan on using the ir option, I did remove the motor for the firing and it works just fine with a power source applied,gears also turn freely by hand so I'm thinking it might be the TX or rx somehow...Chuck

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Postby john1970 » Tue Aug 02, 2022 5:04 pm

The 6.0 doesn't have the switch under the commanders hatch as the BB gun is no longer wired with the elevation unit.
When you say press the firing button are you just pushing the 1 button on the top right?
As you are suppose to push both buttons A + B for the BB gun to fire
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Postby Grey Knight » Tue Aug 02, 2022 6:14 pm

Thank you that was it ! I can't find the manual, would have been helpful lol thanks again ...Chuck

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Postby Herr Dr. Professor » Wed Aug 03, 2022 11:33 pm

I just ran a Google "Advanced Search" with the terms

Manual
"HengLong"

and came up with loads of possibilities. Maybe one of these has the newest manual.
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