RCCrawler Forums

mpjl95 · 02-07-2010, 10:51 PM

Hey guys I'm thinking about getting a DIG unit for my creeper and I was just wondering if you guys have encountered any problems with it.

kurtus · 02-08-2010, 12:38 AM

Mine tends to jam if your on the throttle while shifting it, it works good if you shift it while stopped. The odd occasion it seems to stay locked because I have pressure on the gear from digging it doesn't want to shift but a couple shots on the throttle usually gets it to shift. I'm hoping with more use it will start to shift a little better but time will tell.

Bray D · 02-08-2010, 01:05 AM

Do you think it would shift better with a stronger servo?

kurtus · 02-08-2010, 01:15 AM

I'm using a hitec hs225mg rated at around 60 or so ounces at 6v, stk venom is rated at maybe 30 oz

Riksss · 02-08-2010, 05:13 AM

I'm using a Hitec HS55 and my dig unit woks great

kurtus · 02-08-2010, 07:57 AM

Quote:

Originally Posted by Riksss

I'm using a Hitec HS55 abd my dig unit woks great

Does it ever jam on yeah?

liquidkool · 02-08-2010, 10:51 AM

not if your endpoints are set correctly mine works the best if your in the throttle a little bit like at crawling speed if you try to shift it while at full throttle your bound to break something sooner then later

93firebird · 02-08-2010, 11:14 AM

I don't have any problems with it. I don't recommend shifting into it on the fly though. Remember your trying to take two gears and mesh them, think of the problems you coulc have if they are not alligned properly. It may take a slight tap of the throttle after shifting the gear to make sure everything is fully engaged.

Bray D · 02-08-2010, 11:22 AM

Not sure what the design is but theres applications where gear meshing occurs on the fly, such as some late model transfer cases. Just saying.

"N8" · 02-08-2010, 08:17 PM

Bray d: its totally unsynchronized. The lever arm that actuates it has a spring on it that is used as a bs meshing device so if the teeth are not aligned something will give and hold pressure till the splines align.

kurtus: you can tighten the nut on the very bottom of this lever to tighten the preload of this little arm thingy (<--venoms technical term) and it may help with your servo engaging the driveline disconnect under load.

Bray D · 02-08-2010, 09:36 PM

I figured they wouldn't get that in depth with it. I've had the t-case apart on my 1:1 many times, and the shift of the fly is possible due to the way the actual gears are cut.

Sounds like increasing the preload on that spring may solve the problem. Since its a spring that's actually providing the force to engage the gear, depending on the stiffness of the spring, a higher torque servo wouldn't even be necessary. Unless it was having a hard time disengaging of course.

I'll be reading up on the Vemon Dig threads. I may have to fork over the cash for one with my tax returns.

kurtus · 02-09-2010, 12:31 AM

Quote:

Originally Posted by "N8"

Bray d: its totally unsynchronized. The lever arm that actuates it has a spring on it that is used as a bs meshing device so if the teeth are not aligned something will give and hold pressure till the splines align.

kurtus: you can tighten the nut on the very bottom of this lever to tighten the preload of this little arm thingy (<--venoms technical term) and it may help with your servo engaging the driveline disconnect under load.

Thanks man, I got curious today so I took it all apart to inspect, clean and regrease it all. I made a few tweeks and it seems to be working better now. It only hangs if I'm trying to do a dig climb and then shift it back into 4wd, it starts to click a bit until the stress it relieved from the drivetrian. It's to be expected givin the the design of it. I'm am still very happy with it though and I'm sure with use I'll either figure out the best way to use it or it will start working smoother.

"N8" · 02-09-2010, 09:58 AM

Yea I have to say I am a little unimpressed with it. I have thought to go so far as to cast my own gears and to sharpen up the mating splines so they will cram together under high load, but its a lot of work, and I had hoped that venom would have done all that. ho hum it just means other guys have an advantage in the comps sometimes dig climbing and such.

kurtus · 02-09-2010, 10:16 AM

Yeah it's definiatly not the end of the world for the most part it works decent, you can check out some vids of snwchris and his creeper @ s&n trackside to see it in action on a coarse. He seems to be managing pretty well with his, I think it's just learning the best senario for using it.

01Offroad · 02-09-2010, 07:08 PM

I am actually using the diff lock servo with no problems I did away with the top battery tray and used the diff lock servo mounted on the frame. I am sure the servo will fail at some point, but it has been in there for about 5 months.

02-07-2010, 10:51 PM	#1
mpjl95 Newbie Join Date: Jan 2010 Location: Walnut Ca Posts: 32	Any problems with the DIG for the creeper? Hey guys I'm thinking about getting a DIG unit for my creeper and I was just wondering if you guys have encountered any problems with it.

02-08-2010, 05:13 AM	#5
Riksss Rock Stacker Join Date: Oct 2009 Location: Canada Posts: 84	I'm using a Hitec HS55 and my dig unit woks great Last edited by Riksss; 02-09-2010 at 05:29 AM.

02-08-2010, 12:38 AM	#2
kurtus RCC Addict Join Date: Oct 2009 Location: Nanaimo, BC (Vancouver Island) Posts: 1,153	Mine tends to jam if your on the throttle while shifting it, it works good if you shift it while stopped. The odd occasion it seems to stay locked because I have pressure on the gear from digging it doesn't want to shift but a couple shots on the throttle usually gets it to shift. I'm hoping with more use it will start to shift a little better but time will tell.

02-08-2010, 01:05 AM	#3
Bray D Quarry Creeper Join Date: Dec 2009 Location: Central IL Posts: 282	Do you think it would shift better with a stronger servo?

02-08-2010, 01:15 AM	#4
kurtus RCC Addict Join Date: Oct 2009 Location: Nanaimo, BC (Vancouver Island) Posts: 1,153	I'm using a hitec hs225mg rated at around 60 or so ounces at 6v, stk venom is rated at maybe 30 oz

02-08-2010, 10:51 AM	#7
liquidkool Pebble Pounder Join Date: Nov 2009 Location: joliet Posts: 115	not if your endpoints are set correctly mine works the best if your in the throttle a little bit like at crawling speed if you try to shift it while at full throttle your bound to break something sooner then later

02-08-2010, 11:14 AM	#8
93firebird Pebble Pounder Join Date: Sep 2009 Location: Newark Posts: 107	I don't have any problems with it. I don't recommend shifting into it on the fly though. Remember your trying to take two gears and mesh them, think of the problems you coulc have if they are not alligned properly. It may take a slight tap of the throttle after shifting the gear to make sure everything is fully engaged.

02-08-2010, 11:22 AM	#9
Bray D Quarry Creeper Join Date: Dec 2009 Location: Central IL Posts: 282	Not sure what the design is but theres applications where gear meshing occurs on the fly, such as some late model transfer cases. Just saying.

02-08-2010, 08:17 PM	#10
"N8" Rock Stacker Join Date: Oct 2009 Location: Arlington Posts: 77	Bray d: its totally unsynchronized. The lever arm that actuates it has a spring on it that is used as a bs meshing device so if the teeth are not aligned something will give and hold pressure till the splines align. kurtus: you can tighten the nut on the very bottom of this lever to tighten the preload of this little arm thingy (<--venoms technical term) and it may help with your servo engaging the driveline disconnect under load.

02-08-2010, 09:36 PM	#11
Bray D Quarry Creeper Join Date: Dec 2009 Location: Central IL Posts: 282	I figured they wouldn't get that in depth with it. I've had the t-case apart on my 1:1 many times, and the shift of the fly is possible due to the way the actual gears are cut. Sounds like increasing the preload on that spring may solve the problem. Since its a spring that's actually providing the force to engage the gear, depending on the stiffness of the spring, a higher torque servo wouldn't even be necessary. Unless it was having a hard time disengaging of course. I'll be reading up on the Vemon Dig threads. I may have to fork over the cash for one with my tax returns.

02-09-2010, 09:58 AM	#13
"N8" Rock Stacker Join Date: Oct 2009 Location: Arlington Posts: 77	Yea I have to say I am a little unimpressed with it. I have thought to go so far as to cast my own gears and to sharpen up the mating splines so they will cram together under high load, but its a lot of work, and I had hoped that venom would have done all that. ho hum it just means other guys have an advantage in the comps sometimes dig climbing and such.

02-09-2010, 10:16 AM	#14
kurtus RCC Addict Join Date: Oct 2009 Location: Nanaimo, BC (Vancouver Island) Posts: 1,153	Yeah it's definiatly not the end of the world for the most part it works decent, you can check out some vids of snwchris and his creeper @ s&n trackside to see it in action on a coarse. He seems to be managing pretty well with his, I think it's just learning the best senario for using it.

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02-09-2010, 07:08 PM	#15
01Offroad Newbie Join Date: Nov 2007 Location: Indy Posts: 19	I am actually using the diff lock servo with no problems I did away with the top battery tray and used the diff lock servo mounted on the frame. I am sure the servo will fail at some point, but it has been in there for about 5 months.

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