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SCOTT

0427 477 740

muckadilla workshop

0427 939 475

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Scott Holmes Mechanical is a mobile mechanic who has has been looking after the farmer and contractor in the Maranoa & Warrego districts, and Western Queensland for the past 19 years. No distance is too far.

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3 Rose Smith Lane,
Muckadilla QLD 4461

SCOTT:
0427 477 740

MUCKADILLA WORKSHOP:
0427 939 475

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Scott Holmes Mechanical

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Scott Holmes Mechanical

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Scott Holmes Mechanical

Scott Holmes Mechanical

Well I've always said that hydrocarbon in AC systems was a danger not forgetting the fact that it's not good for the ac compressor & even the suppliers of it recommend replacement of reduced barrier hose.
We only use R134a at SCOTT HOLMES MECHANICAL.

From: VASA: Driving NEWSFLASH: QLD mine truck driver injured by hydrocarbon refrigerant blast

SightGlass eNews Newsflash January 19 2021

NEWSFLASH: QLD mine truck driver injured by hydrocarbon refrigerant blast

A truck driver at an underground mine in Queensland has sustained serious burns to their face, hands and chest from an explosion caused by the vehicle’s air-conditioning system, which was found to have been charged with hydrocarbon refrigerant.

The incident happened on January 11 this year, while the worker was driving in the underground mine. Resources Safety & Health Queensland (RSHQ) reports that safety glasses protected the truck driver’s eyes from injury.

“The force of the blast dislodged some of the windows of the truck's cabin and these were blown clear of the truck,” says the RSHQ report, which included images of a deformed metal cabin filter panel and fragments of window that were ejected during the explosion.

An investigation into the incident is underway but initial findings are that the air-conditioning system was “charged with a refrigerant containing propane and isobutane (hydrocarbon) instead of compliance with the original equipment manufacturer (OEM) requirement which stipulates the use of R134a refrigerant”.

The system was also “not certified for the use of the hydrocarbon refrigerant”.

Furthermore, the people who serviced and charged the truck’s air-conditioning system did not hold the requisite Queensland Gas Work Licenses for working with hydrocarbon refrigerant.

It is not yet known what the source of ignition was, but the investigation so far has concluded that “the release of hydrocarbon refrigerant from the AC into the cab created an explosive atmosphere”.

RSHQ has indicated that it may publish more information about this incident as the investigation progresses.

RSHQ refers to a similar incident in 2014 “when a drill operator in a coal mine suffered burns to the face, hands and torso in an explosion after hydrocarbon refrigerant leaked from the AC system and ignited”.

Other serious hydrocarbon refrigerant incidents recorded around Australia have resulted in two deaths (the Rochester Hotel explosion in regional Victoria) and three serious injuries (a truck explosion in Perth and a major fire at a hydrocarbon refrigerant warehouse in Melbourne).

Recommendations in the RSHQ safety alert include that the senior site executive must:

Inspect all refrigeration plant and equipment including AC units on mobile plant to verify compliance with OEM guidance with regards to refrigerant(s)Any refrigeration plant and equipment charged with refrigerant(s) not specified by the OEM must be immediately quarantined from useIf an alternate refrigerant is used, the refrigeration system must be inspected and certified for the use of that alternate refrigerant. In the case of hydrocarbon refrigerants, this is certified by the Petroleum and Gas InspectorateAny refrigerants may only be charged or drained by persons that are specifically licensed for those refrigerants

Read the RSHQ safety alert here

https://mailchi.mp/vasa/sgen-newsflash-jan-2021?e=c15075b64d

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Scott Holmes Mechanical

Scott Holmes Mechanical

We have now made a unit for the kubota 65 series. We are able to put the unit below roof height because the lift arm cross bar does not come as close to the cabin as the 75 & 95 models.
The filter assembly needs to be removed when the cab is tilted this only requires removal of 4 bolts.

Scott Holmes Mechanical

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Scott Holmes Mechanical

Scott Holmes Mechanical

Bit of a problem in this VDJ79 landcruiser EGR & short runs don't work well.

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Scott Holmes Mechanical

Scott Holmes Mechanical

These new style reddot R6101 units look good & also have improved performance than the old style r6100 units. Just fitted this unit to a white road boss for a local property owner.

Scott Holmes Mechanical

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Scott Holmes Mechanical

Scott Holmes Mechanical

Latest project we have developed a cabin pressuriser & engine precleaner system for kubota skid steers.
These units allow you to pressurise the cabin reducing dust entry & allowing the ac system to work better & improving operator comfort.
It also has a Donaldson turbo pre cleaner which gets your engine air intake out of the heat & dust allowing for better performance & longer air filter life.
The 5mm thick roof plate also helps to keep the heat out of the cabin & also provides better cabin protection.
For more information & pricing give us a call.

Scott Holmes Mechanical

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