Diesel RVs: 05/26/14

No one's really sure just what kicking the accelerator before starting these old diesels does, but it does something. The procedure I outlined is actually from the operator's manual. Or close to it....

Mark in Lakewood, CO

From: "sifuma2002@yahoo.com [diesel_mercedes]" <diesel_mercedes@yahoogroups.com>
To: "diesel mercedes" <diesel_mercedes@yahoogroups.com>
Sent: Saturday, May 24, 2014 12:55:28 PM
Subject: Re: [diesel_mercedes] Re: 300D Hard Starting

Mark in Lakewood, what does pumping the accelerator pedal achieve in a diesel? Is it a habit from carb cars you have driven/drive?

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Posted by: "Mark in Lakewood, CO" <beeser750@q.com>

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So, I'm assuming that the compressor did run when you connected it directly to the battery? If so, there should not be any bubbles in the sight glass after running for about a minute, though the system should still run even if it is still a little low.

As was pointed out by Rob, there is a pressure switch that can be bypassed to check the operation of the controls. While charging, the low side pressure will go up and the compressor should kick in, so no need to bypass the pressure switch if it is working properly.

Mark

From: "'Michael E. Williams' attymw@yahoo.com [diesel_mercedes]" <diesel_mercedes@yahoogroups.com>
To: "attymw@yahoo.com [diesel_mercedes]" <diesel_mercedes@yahoogroups.com>
Sent: Saturday, May 24, 2014 5:59:43 AM
Subject: Re: [diesel_mercedes] Re: Help with Klima I HVAC

I have one bubble in the sight (sp?) glass. That is when the compressor is attached to the positive post of the battery.

Would you know does the compressor not run at all if the freon is low?

would only one bubble mean the freon is too low to produce any cold air?

Thanks a million

Mike

T-Mobile. America's First Nationwide 4G Network.

------ Original message ------
From: attymw@yahoo.com [diesel_mercedes]
Date: 05/13/2014 8:31 PM
To: diesel_mercedes@yahoogroups.com;
Subject:[diesel_mercedes] Re: Help with Klima I HVAC

Well it looks like the outlet pipe is hot.