Rigid_EVO 98 Stator Removal / Inspection / Installation

[Hippysmack]

Originally Posted by sportsterdoc

This gallon of varnish at Grainger has a halfway reasonable price but I see nothing about drying time or hardness.
https://www.grainger.com/product/SPR...-Varnish-6KDY3

It seems the TDS for the gallon has either has vanished or is not available.
No thinner specs or baking specs.
The gallon would still need to be thinned for good viscosity run.

Spray can (material specs should be the same although dry / curing time would be different).
https://www.paintdocs.com/docs/webPD...0601000&lang=2
Sprayon EL601 Red Insulating Varnish
PERFORMANCE
• SPECiFiCATiON: MEETS PERFORMANCE REquiREMENTS
OF ASTM d 115-07 4.2 PERFORMANCE FOR:
4.2.1 Drainage: 22%
4.2.2 Time of Drying: See drying schedule
4.2.3 Build: 2.9 mm
4.2.8 Oil Resistance: See chemical resitance
• TEMPERATURE CLASS: Class F (155°C / 310°F)
• dRy hEAT RESiSTANCE:
Constant: 310°F
Intermittently: 400°F
• DIELECTRIC STRENGTH:
(ASTM D 115-07) Clear: 2,300 VPM
• ONE WEEK HARDNESS:
(ASTM D 3363 SHORE A 24hr / 1 Week): 6B
• FLEXIBILITY: (ASTM D 522) Pass
• CHEMICAL RESISTANCE:
Aliphatic hydrocarbon solvents: Moderate
Alkalis: Modarate
Aromatic hydrocarbon solvents: Severe
Chlorinated solvents: Severe
Salt water: Severe
Glycol ethers, alcohols: Severe
Inorganic acids: Severe
Organic acids: Severe
Oils: Severe
• DRYING TIME @ 70°F @ 50% R.H.:
To Touch: 10 Minuntes
To handle: 15-30 Minutes (Tack Free)
Full cure: 7 Days

[sportsterdoc]

Originally Posted by Hippysmack

I quoted bustert's stator rewinding videos here as that may be how I fix this.

BusterT did a great job on both.
Keeping the coils tight in this configuration is not easy, but very important.

[sportsterdoc]

Originally Posted by Hippysmack

• DRYING TIME @ 70°F @ 50% R.H.:
To Touch: 10 Minuntes
To handle: 15-30 Minutes (Tack Free)
Full cure: 7 Days

That 7 days for a full cure at 70 F points out the benefit of an oven cure!...and it would be longer at higher humidity?

I expect you want to do as much yourself as practical, but you may want to consider doing the winding, but letting the motor shop do the dip and bake.

Otherwise I'd recommend the epoxy option.

[Hippysmack]

I figured I'd lock the stator in a bench vise with a tightening jig to give both hands free with a semi tight spool rod on the wire.
That way I can work it without fear of unwinding.

[Hippysmack]

Originally Posted by sportsterdoc

That 7 days for a full cure at 70 F points out the benefit of an oven cure!

Yes it does....
I feel like up North would be more stable in the summer for 70 deg.
But we have 45-70 deg here right now within 24 hours.

The spray can be baked.