| macerator repair [message #95124] |
Mon, 09 August 2010 15:08  |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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Senior Member |
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Macerator has failed to pump anything. Motor spins, but nothing is pumped. I down loaded a sheet of instructions on macerator repair (installation of a repair kit). However, the model 19598 differs from the one in my coach a little. The exploded view shows a "chopper" at the end of the motor shaft. My macerator has a three pronged cast assembly, instead of a blade. Part of the instructions say to insert a slim ignition wrench behind the chopper. I don't see anywhere to slide the wrench, there does not appear to be any flats for a wrench to grab on to.
Unfortunately, the macerator has lost its data label, so I'm not exactly sure of make or model. I have a replacement impeller kit that is labeled Jabsco, and most of the parts and design seems to follow the exploded diagram for the Jabsco, so I suspect that it is a Jabsco.
I think that the impeller has failed.
Thank goodness for a 3" dump valve, or this would be much worse than it already is. 
Tom Phipps,
75 GMC
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: [GMCnet] macerator repair [message #95138 is a reply to message #95136] |
Mon, 09 August 2010 16:46  |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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Senior Member |
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Thanks for the input. I went back and looked with a brighter light. The wrench actually grabs on the flat spot, that Jabsco put on the motor shaft. So, I was able to disassemble and reinstall a new impeller. The old impeller appeared to have lost its shape after being installed sometime prior to 1988. Hope this cures the little devil. Otherwise, the suggestion from Gene will be the solution.
Tom Phipps,
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: [GMCnet] macerator repair [message #95146 is a reply to message #95138] |
Mon, 09 August 2010 17:39 |
fred v
Messages: 999
Registered: April 2006
Location: pensacola, fl.
Karma: 0
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Senior Member |
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| tphipps wrote on Mon, 09 August 2010 16:46 |
Thanks for the input. I went back and looked with a brighter light. The wrench actually grabs on the flat spot, that Jabsco put on the motor shaft. So, I was able to disassemble and reinstall a new impeller. The old impeller appeared to have lost its shape after being installed sometime prior to 1988. Hope this cures the little devil. Otherwise, the suggestion from Gene will be the solution.
Tom Phipps,
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Tom, you could also have a blockage in the tank. i have one of those 90 deg. 3" adapters that i can hook a water hose up to and back flush the tank and clear any blockage.
Fred V
'77 Royale RB 455
P'cola, Fl
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| Re: [GMCnet] macerator repair [message #95150 is a reply to message #95124] |
Mon, 09 August 2010 17:49 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
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Senior Member |
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I just went through the same thing, only after 2 weeks of dry
camping.....stopped to dump and when I turned on the macerator all the smoke
came out of the motor and we all know that's it's the smoke that makes all
electrical stuff work, cuz whenever the smoke comes out of anything electrical
it usually doesn't work anymore.
I bought a new Johnson Macerator on Ebay for $99 included shipping, had it in 2
days.
Interesting things is that we have a 3" dump valve and no hose.....so we had to
stop at about 6 dump stations until we found one with a BIG concrete
bowl.....put a rock on the sewer cover to keep it open, backed the GMC over the
bowl and pulled the valve and slowly let it drain......hosed everything down
really good before we left. We're going to buy the connector fitting and a
hose to keep in the coach as a "just in case".
Not sure I would want to do the rebuild, pretty nasty job just replacing the
whole thing let alone take the pump apart.
Ray
Ray & Lisa Erspamer
78 Royale Center Kitchen
TZE368V101144
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
________________________________
From: Thomas Phipps <tph1pp5@yahoo.com>
To: gmclist@temp.gmcnet.org
Sent: Mon, August 9, 2010 3:08:52 PM
Subject: [GMCnet] macerator repair
Macerator has failed to pump anything. Motor spins, but nothing is pumped. I
down loaded a sheet of instructions on macerator repair (installation of a
repair kit). However, the model 19598 differs from the one in my coach a
little. The exploded view shows a "chopper" at the end of the motor shaft. My
macerator has a three pronged cast assembly, instead of a blade. Part of the
instructions say to insert a slim ignition wrench behind the chopper. I don't
see anywhere to slide the wrench, there does not appear to be any flats for a
wrench to grab on to.
Unfortunately, the macerator has lost its data label, so I'm not exactly sure of
make or model. I have a replacement impeller kit that is labeled Jabsco, and
most of the parts and design seems to follow the exploded diagram for the
Jabsco, so I suspect that it is a Jabsco.
I think that the impeller has failed.
Thank goodness for a 3" dump valve, or this would be much worse than it already
is. :(
Tom Phipps,
75 GMC
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List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
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| Re: [GMCnet] fuse or circuit breaker? [message #95193 is a reply to message #95187] |
Tue, 10 August 2010 00:25 |
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WD0AFQ
Messages: 7111
Registered: November 2004
Location: Dexter, Mo.
Karma: 207
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Senior Member |
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I have a 20 or 25 amp fuse in mine. It is just whatever I can grab at the time. I have blown a few. I have mine fused in the main house fuse box.
Dan
3 In Stainless Exhaust Headers
One Ton All Discs/Reaction Arm
355 FD/Quad Bag/Alum Radiator Manny Tran/New eng.
Holley EFI/10 Tire Air Monitoring System
Solarized Coach/Upgraded Windows
Satelite TV/On Demand Hot Water/3Way Refer
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