Author Topic: Anyone after a Cooks trailer?  (Read 1809 times)

Offline Mick_Marsh

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Anyone after a Cooks trailer?
« on: June 14, 2017, 07:32:48 PM »
I know people have asked me about them before. Well, there is one for sale, ebay auction.
http://www.ebay.com.au/itm/Army-trailer/201954108040
REMLR # 310, MVCA # 364, 101 Club # 2188, MHG #101
29-417 101 GS, 30-248 101 Rapier Tractor. 30-238 101
34-597 Crump & Cornish 1 ton Cargo Trailer
RT21 RAAF Track Tactical Trailer, 234-671 RAAF Track Tactical Trailer

Offline Philthy

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Re: Anyone after a Cooks trailer?
« Reply #1 on: June 15, 2017, 07:37:56 AM »
Thanks for sharing Mick.

How do you do a brake fluid bleed or fluid change on one of these?

Do you have to pressurise the reservoir and or compress the tow hitch?

Or do they apply a vacuum at the nipples?
« Last Edit: June 15, 2017, 07:40:58 AM by Philthy »

Offline Mick_Marsh

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Re: Anyone after a Cooks trailer?
« Reply #2 on: June 15, 2017, 08:52:56 AM »
Thanks for sharing Mick.

How do you do a brake fluid bleed or fluid change on one of these?

Do you have to pressurise the reservoir and or compress the tow hitch?

Or do they apply a vacuum at the nipples?
No idea. Never done one before. I'm sure you'll work it out.
I have a vacuum bleeder. I gravity bled the Tracks and C&C.
REMLR # 310, MVCA # 364, 101 Club # 2188, MHG #101
29-417 101 GS, 30-248 101 Rapier Tractor. 30-238 101
34-597 Crump & Cornish 1 ton Cargo Trailer
RT21 RAAF Track Tactical Trailer, 234-671 RAAF Track Tactical Trailer

Offline 303Gunner

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Re: Anyone after a Cooks trailer?
« Reply #3 on: June 15, 2017, 10:10:28 AM »

How do you do a brake fluid bleed or fluid change on one of these?

Do you have to pressurise the reservoir and or compress the tow hitch?

In common with the Haulmark 750Kg and 1250Kg trailers that also share the same Cebco master cylinder, there is a process detailed in the EMEI.

A 12V supply is put across the solenoid to open the hydraulic system, then the pintle lunette is slowly pumped in and out using a bar, rod or even a star picket. The procedure is the same as a vehicle with the caliper nipples alternately opened and closed in concert with compressing and releasing the lunette. This is a 2 person job, unless you have some kind of non flow-back device at the caliper (like my jar-and-hose contraption).

I've done this on my PT2-2 Tandem Haulmark, and I'd recommend anyone buying any trailer to flush the brake fluid on any of these trailers as they have likely sat for some time and absorbed water in the brake fluid. The Cebco master cylinder is a great 4wd design with inner and outer caps to cover the fluid reservior, but brake fluid has a thirst for water over time.

All the braking components are still available from CEBCO, although I have a few hints and tips for other sources.

Offline Philthy

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Re: Anyone after a Cooks trailer?
« Reply #4 on: June 15, 2017, 10:12:13 AM »


That sounds the ticket.

Thanks Gunner and Mick bookmarked for reference for later!
 
Shame its so far away from me...
« Last Edit: June 15, 2017, 10:17:22 AM by Philthy »

Offline 303Gunner

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Re: Anyone after a Cooks trailer?
« Reply #5 on: June 15, 2017, 10:16:50 AM »
Note that the Cooks and Haulmarks won't gravity bleed unless 12v is applied to the solenoid to open the hydraulic system.