Thomas Blue Tongue MK IV stopping

Submitted: Sunday, May 03, 2015 at 18:23
ThreadID: 117720 Views:3137 Replies:4 FollowUps:9
This Thread has been Archived
Hi, hope you can help.
I have a Thomas Blue Tongue MK IV compressor which has had only very occasional use. On a recent trip the unit kept stopping due I think to a thermal safety cut-out.
I had only pumped up 3 caravan tyres from 24psi to 40psi when it first cut out. This surprised me as my original Thomas Blue Tongue purchased in 1994 never missed a beat running continuously as they are supposed to. ( gave this to son as newer MK IV rated higher flow for more tyres on caravan and Patrol).
The ambient temp. was only about 27C.
Does anyone know who the repair/service agents are for Thomas here in Perth, West Aust.
I have searched Google without success.

Thanks
Michael
Back Expand Un-Read 0 Moderator

Reply By: Member - ACD 1 - Sunday, May 03, 2015 at 18:33

Sunday, May 03, 2015 at 18:33
Hi Michael

I've never heard of one stopping due to a thermal cutout. They are one of the few with a true continuous duty cycle.

The only time my original and then my MkIII stopped was when they second battery was on its way out and there was not enough current!

I do believe you can still get a service kit for them which includes all the bits you'll need to get it going again. There isn't much in them to go wrong.

Not sure where you are, but try Opposite Lock who used to be a dealer for them. I do believe they are quite expensive though. I believe it is worth the investment. Not the quickest inflator on the market, but the 150 psi continuous duty cycle won't let you down.

Cheers

Anthony
VKS 3539
Work - a 40 hour interuption to my weekend!
Too many places - too little time

Member
My Profile  My Position  Send Message

AnswerID: 553242

Follow Up By: sastra - Sunday, May 03, 2015 at 18:43

Sunday, May 03, 2015 at 18:43
Yes Anthony continuous duty is why I bought my first one in 1994 and also the MK IV but not impressed with this one at present.
I bought this one second hand in zip up Thomas bag like new and did not look as though it was ever used.
0
FollowupID: 839022

Reply By: 4wheeler - Sunday, May 03, 2015 at 19:58

Sunday, May 03, 2015 at 19:58
Try the Thomas distributor in Sydney as listed on global site. Hope they can help and hope the information is correct.

Gardner Denver Thomas Australia
13 Arnott Place
Wetherill Park
New South Wales
2164
Australia
Tel: +61 2 9725 5199
Fax: +61 2 9725-5128
AnswerID: 553250

Follow Up By: sastra - Sunday, May 03, 2015 at 21:05

Sunday, May 03, 2015 at 21:05
Thanks 4wheeler, looks like they have an office over here in Kewdale WA.
0
FollowupID: 839040

Reply By: Member - Young Nomads - Sunday, May 03, 2015 at 21:31

Sunday, May 03, 2015 at 21:31
We have a blue tongue. Is that what you are talking about! Just had to do it ! LOL


AnswerID: 553262

Follow Up By: sastra - Sunday, May 03, 2015 at 23:45

Sunday, May 03, 2015 at 23:45
A very helpful member.Thanks.
0
FollowupID: 839060

Reply By: AlbyNSW - Monday, May 04, 2015 at 05:53

Monday, May 04, 2015 at 05:53
Is it possible that it cut out due to low voltage supply?
AnswerID: 553272

Follow Up By: Member - ACD 1 - Monday, May 04, 2015 at 09:59

Monday, May 04, 2015 at 09:59
Hi Alby

This is what I think was wrong with mine. It worked fine if the vehicle was running, but died when it was running off the second battery.

Once I sorted the issue with the second battery - no more problems and still runs well today.

Cheers

Anthony
VKS 3539
Work - a 40 hour interuption to my weekend!
Too many places - too little time

Member
My Profile  My Position  Send Message

0
FollowupID: 839071

Follow Up By: sastra - Monday, May 04, 2015 at 10:28

Monday, May 04, 2015 at 10:28
Motor was running with revs up on hand throttle. Battery one week old and charge correct. When cut out occurred, waited 5 minutes and was able to continue inflating for one patrol tyre then same thing happened.Waited 10 minutes and finally finished inflations.

Cheers
0
FollowupID: 839079

Follow Up By: Flighty ( WA ) - Monday, May 04, 2015 at 15:17

Monday, May 04, 2015 at 15:17
Sastra
Maybe look at power feed from battery to compressor , unsure if you connect direct to battery?
But recently had same issue on another vehicle and found thermal overload mounted "inline" on power supply, rated at 20 amp and compressor drags 40 amps, causing headache and concern towards compressor.
Not an expert ,but maybe something to look at
Cheers
Flighty

Lifetime Member
My Profile  Send Message

0
FollowupID: 839108

Follow Up By: sastra - Monday, May 04, 2015 at 17:06

Monday, May 04, 2015 at 17:06
Thanks Flighty, have had some advice re maybe a voltage issue causing compressor to pull too high amps and trigger the thermal overload so you may be on the right track here.
What I don't get is the MK IV now plugs into the same plug under drivers seat as the original Thomas which had no issues.
Interestingly last year I had both pumps with me to speed up inflation time, using old Thomas to inflate caravan tyres while using MK IV directly off second battery with it's orig alligator clips to inflate Patrol tyres. There was no problem coming direct from battery so this may be a clue to my problem.
I would have thought both pumps would require same volts and amps but maybe someone could tell me otherwise.

Cheers
0
FollowupID: 839119

Follow Up By: Allan B (Member, SunCoast) - Monday, May 04, 2015 at 17:18

Monday, May 04, 2015 at 17:18
Michael,

The compressor current draw is directly related to the pumping capacity of the compressor so your MK IV is going to draw more current than your earlier compressor.

The behaviour you describe sounds like an auto-resetting circuit breaker tripping out on excess current then resetting after a short cooling period. This breaker is somewhere on the supply to your plug under the seat, probably at or near the battery. It may have been satisfactory for your earlier smaller compressor but needs upgrading for the MK IV. A 60A rated circuit breaker should be suitable.
Cheers
Allan

Member
My Profile  My Blog  My Position  Send Message

0
FollowupID: 839120

Follow Up By: sastra - Monday, May 04, 2015 at 21:02

Monday, May 04, 2015 at 21:02
Thanks Allan, the thermal overload mechanism is inside the back of the pump under a vented cover held in place by 2 long screws.
The mechanism is a bi-metal system consisting of 2 points looking like a old time distributor points. I'm told if too much heat is created, the points open and current stops.
Wiring from battery to switch in dash and connection under drivers seat may need upgrading. Here's hoping this is the answer.

cheers
Mike
0
FollowupID: 839136

Sponsored Links

Popular Products (13)