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woyster99
New Member
Katy
TX
USA
32 Posts |
 Posted - 02/07/2010 : 00:17:49
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This is my first post. I have already learned a ton just by searching and reading previous posts. However I cannot figure out a problem I am having.
Recently we were given a PW 92 Jeep Sand Blaster. It had cracked batteries and no charger but seemed to be in pretty good condition otherwise considering it is 18 years old. It appears to be completely stock with no signs of modifications or repair work. I have learned that although it has the male A style battery connectors on the red batteries it runs to an H style connector. I will be changing this out soon but I want to make sure the PW works first.
Today I purchased two new 6V PW batteries and a Schumacher SEM-1562A battery charger/maintainer. I got the batteries charged up but when I put them in I got nothing. After some troubleshooting with a meter I discovered that both the Hi-Lo and Fwd-Rev switches weren’t functioning properly. After I pulled them apart and cleaned them up they are good as new!
Here comes my problem…
With the Hi-Lo switch in Lo, I get movement in both Fwd and Rev. However, when the Hi-Lo switch is in Hi, I get nothing (yes the red wire under the dash is connected). I am getting 12.8 volts at the foot pedal but when depressed…nothing. I get 6.5 volts when in low and movement when the foot pedal is depressed. Any ideas? Wiring, foot pedal, motors, …? I am baffled!
Sorry for the long posting. I just wanted to give some background so you know what all I have tried. THANKS!
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1992 Power Wheels JEEP Sand Blaster - 18V
2009 MegaTredz Raptor 700R - 18V |
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gseric69
Moderator
Red Lion
PA
USA
6272 Posts |
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woyster99
New Member
Katy
TX
USA
32 Posts |
Posted - 02/07/2010 : 11:21:47
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| Nope...already tried flipping the switch. I even tried swapping the Hi-Lo and Fwd-Rev switches with no change and as mentioned I am getting 12.8 volts at the foot pedal switch with the Hi-Lo switch in Hi and 6.5 volts in Lo. Everything seems to work except there is no movement when the foot pedal is depressed in Hi speed. Thanks for the suggestion. Anything else? |
1992 Power Wheels JEEP Sand Blaster - 18V
2009 MegaTredz Raptor 700R - 18V |
Edited by - woyster99 on 02/07/2010 11:23:40 |
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woyster99
New Member
Katy
TX
USA
32 Posts |
Posted - 02/07/2010 : 14:14:28
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OK...so I let my boys (twin 4-year olds) take just jeep out this morning. It did run in Lo with both of them in it. However it seemed to be VERY slow...seems slower than 2.5 MPH...even with only one boy in it. And it seemed to go slightly faster in reverse. Would NOT go up slight inclines and would NOT drive in the grass. The boys had fun but I'm thinking something is just not right.
Could the motors be weak and need replacing? Could this be the culprit to my Hi setting not working? If they need to be replaced, any suggestions on what to get? I may even be interested in doing some upgrades to make it faster (18 volts, etc).
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1992 Power Wheels JEEP Sand Blaster - 18V
2009 MegaTredz Raptor 700R - 18V |
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gseric69
Moderator
Red Lion
PA
USA
6272 Posts |
Posted - 02/08/2010 : 08:58:06
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Try putting 12V direcly to the motors, bypassing all the wiring. You can use a car battery to test them if that's easier. If they spin faster that way, then they are working fine, and the issue is in the wiring somewhere.
These older models switch the batteries between series and parallel, so if a wire is broken somewhere in the chain, only one of the two batteries is getting is power to the motors, so it would still only work on low speed even when you select high. You might have to just trace all the wiring to makes sure there isn't a broken wire somewhere. I had that happen once.
The motors and gearboxes on these models do great on 18V, so once you get the wiring straightened out, 18V would be a great upgrade. You have 700 series motors in that, which are much tougher than the 550 motors in the newer models. |
36V Peg Perego Apache - Project: Super Power Police Jeep, 18V Metal Frame Jeep - Project: Sarge
Dragon/Craftsman Pickup Hybrid (WIP), 18V John Deere Off Road 4x4 (Gaucho)
12V Lil Jeep, 18V Turbo Sun Jammer Jeep, 12V Super 6 F150 Blue Thunder,
18V Lightning McQueen & 12V Lightning McQueen w/Duratrax Motors (Sold)
18V Green & Blue Ninja Quads w/19T's, 18V Dora Quad with 21T's
12V Harley Bat Bike w/Duratrax Motors, 12V Pink Harley (Future Trike)
Future Builds: 12V Xtreme Machine, 12V PW Fire Truck, 6V Wild Thing Super 6 & Mach 5
RIP: 12V Super 6 Suzuki Quad w/Seperate Brake pedal (Decommissioned/Parted) |
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Taz11
Advanced Modder
Bloomsbury (08804)
NJ
3051 Posts |
Posted - 02/08/2010 : 10:09:38
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| Check for voltage drop. With the wheels spining under load, check the voltage at the battery and at the motor. I had one older Jeep that was over 4 volts different. (it should be less than 1v, give or take). If its high check along many points along the harness to see where. I suspect the problem is going to be a switch or plug at a switch. |
Drive it like you stole it!........out of somebody's garbage! |
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woyster99
New Member
Katy
TX
USA
32 Posts |
Posted - 02/14/2010 : 17:50:18
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Well I figured it out today...FINALLY!!
It wasn't a switch, motor, battery or wire. After messing with it for the past week+, it started working in High and Low just out of the blue. I put it all back together and it worked for about 5 minutes of riding in High then only Low worked again. I jiggled the white H-type battery connector under the hood and High worked for another minute or two before nothing worked...no high, low, nothing.
I knew I needed to replace this connection anyway, so temporarily I have cut the connector out and used quick disconnect terminals to connect everything. AND it worked! My boys were able to ride the thing for upwards of 30 minutes in High, Low, Forward and Reverse before the batteries discharged. So, it was the recalled H-type battery connector under the hood originally used to connect the batteries to the vehicle wiring and the charger to the batteries.
As a permanent fix, the batteries have male A-type connectors on them. Under the hood there were female A-type connectors running to the H-type connector. I'm going to cut the male A-type connectors off of the old set of batteries and splice them where the H-type was. I then found a member here that I purchased two female A-type connectors from and I will connect those to the vehicle side where the H-type was (reason is there isn't enough wiring from the vehicle to the batteries). I still need two more female A-type connectors and have a post in the for sale/wanted section requesting some. So if you have any available, please let me know.
So I guess the moral of the story is...if you've got the H-type connectors, get rid of them!!! |
1992 Power Wheels JEEP Sand Blaster - 18V
2009 MegaTredz Raptor 700R - 18V |
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gseric69
Moderator
Red Lion
PA
USA
6272 Posts |
Posted - 02/15/2010 : 15:25:30
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Cool, glad you got it figured out.
Just an FYI, if you get another one with an H connector, don't cut it off, just take it into your local service center and they'll replace it with A connectors for free. |
36V Peg Perego Apache - Project: Super Power Police Jeep, 18V Metal Frame Jeep - Project: Sarge
Dragon/Craftsman Pickup Hybrid (WIP), 18V John Deere Off Road 4x4 (Gaucho)
12V Lil Jeep, 18V Turbo Sun Jammer Jeep, 12V Super 6 F150 Blue Thunder,
18V Lightning McQueen & 12V Lightning McQueen w/Duratrax Motors (Sold)
18V Green & Blue Ninja Quads w/19T's, 18V Dora Quad with 21T's
12V Harley Bat Bike w/Duratrax Motors, 12V Pink Harley (Future Trike)
Future Builds: 12V Xtreme Machine, 12V PW Fire Truck, 6V Wild Thing Super 6 & Mach 5
RIP: 12V Super 6 Suzuki Quad w/Seperate Brake pedal (Decommissioned/Parted) |
Edited by - gseric69 on 02/15/2010 15:26:39 |
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aztracks
Journeyman Modder
Chandler
Arizona
USA
118 Posts |
Posted - 05/11/2010 : 00:23:25
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FWIW, I also just got a Sand Blaster Jeep and had a similar issue. I removed, opened, and cleaned both switches only to have intermittent issues. After cleaning both switches twice, it ended up being a loose connection within the battery connector. The battery connector wires seemed snug so it took me a while to find it.
I haven't figured out what I am going to do for replacement connectors yet. I am still looking through the site to see what options there are. |
F-150:
'94 Super Sound Jeep Sand Blaster : http://www.modifiedpowerwheels.com/forum/topic.asp?TOPIC_ID=17274 |
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92 Jeep Sand Blaster
