Your last generator Maintenance Run

[Chilliwack Murray]

I’ve seen black iron pipe right into the fuel solenoid on a propane 460 Ford. The more common one is a gas range flex hose used on an engine - they aren’t mean for vibration, just to move the stove in and out.

Also had one contractor install a 460 or a V10 Ford Nat Gas genset on castors with a 10’ fuel hose and the shutoff on the genset end. All that was sitting under a golf course club house so they could wheel it out when they used it.

Many times you just have to shake your head.

 

[ultrarunner]

That’s odd if you are referring to an engine generator and not a PTO unit. Almost sounds like a typo.

Solidly mounting a reciprocating engine will cause the main bearings to fail prematurely. All industrial units require isolators and in the case of a warranty claim for bearing or crankshaft related failure the isolators and their adjustment are carefully scrutinized.

Natural Gas configured unit... will see if I can cut and post

 

[LouNY]

That痴 odd if you are referring to an engine generator and not a PTO unit. Almost sounds like a typo.

Solidly mounting a reciprocating engine will cause the main bearings to fail prematurely. All industrial units require isolators and in the case of a warranty claim for bearing or crankshaft related failure the isolators and their adjustment are carefully scrutinized.

I do not see were you get this, most every tractor out in the world the engine is bolted into a solid frame and solidly mounted to the transmission.
The large gen sets that I worked on where all solid mounted, from huge 6 and 8 cylinder natural gas units down to the big cat and cummins all have steel frames and are solidly bolted down to the frames.
Rebuilt Waukesha 1 kW L742GSI Natural Gas Generator (#6132)
no isolators on this unit and it's not even that large.
solid mounts and shimmed to be square and tight.

 

[grsthegreat]

I do not see were you get this, most every tractor out in the world the engine is bolted into a solid frame and solidly mounted to the transmission.
The large gen sets that I worked on where all solid mounted, from huge 6 and 8 cylinder natural gas units down to the big cat and cummins all have steel frames and are solidly bolted down to the frames.
Rebuilt Waukesha 1 kW L742GSI Natural Gas Generator (#6132)
no isolators on this unit and it's not even that large.
solid mounts and shimmed to be square and tight.

I think the difference is a tractor or car motor is attached to a frame that can move via tires .. a motor bolted to ground cannot. As far as I know all engines have mounting blocks that have some give to absorb torque and vibration.

 

[Industrial Toys]

All the vibrational energy on a tractor goes into shaking your drink and your new LED lights. I remember how I couldn't put a revolving light on a small tractor as it would get shaken to peices.

 

[Chilliwack Murray]

Solid mounted to the frame but frames are on isolators - either spring or rubber waffle type.

In a tractor, the frame is free to move, you can’t bolt and engine directly to concrete without causing damage.

I get this from two decades of failure analysis on generators from 10 -2500 kw.

 

[Chilliwack Murray]

I do not see were you get this, most every tractor out in the world the engine is bolted into a solid frame and solidly mounted to the transmission.
The large gen sets that I worked on where all solid mounted, from huge 6 and 8 cylinder natural gas units down to the big cat and cummins all have steel frames and are solidly bolted down to the frames.
Rebuilt Waukesha 1 kW L742GSI Natural Gas Generator (#6132)
no isolators on this unit and it's not even that large.
solid mounts and shimmed to be square and tight.

That is a sale photo of a paint booth overhaul, not an installed unit. The alternator is shimmer and solid mounted to the frame but that frame will be on some kind of isolator when they install it.

 

[downsizingnow48]

I looked up Generac vibration isolators on Jack’s Small Engines there are dozens obviously a standard component.

 

[3930dave]

As always, interesting reading the posts here :thumbsup:

Rgds, D.

 

[ultrarunner]

Thatç—´ odd if you are referring to an engine generator and not a PTO unit. Almost sounds like a typo.

Solidly mounting a reciprocating engine will cause the main bearings to fail prematurely. All industrial units require isolators and in the case of a warranty claim for bearing or crankshaft related failure the isolators and their adjustment are carefully scrutinized.

It took a little time to dig out the old Winco documentation... this Natural Gas unit served as emergency back-up power for a small medical clinic.

Here is the cut and past regarding mounting:

Caution The unit's main frame should be bolted solidly to a 4 to 6 inch thick cement pad. The engine-generator is mounted on a sub-frame which is shock mounted with special neoprene pads on the main frame. This allows the engine generator to vibrate without affecting the control panel which is mounted on the main frame. DO NOT shock mount the main frame. Engine vibration will be trans-mitted to the control panel causing erroneous start-stop cycles and premature control failure.