A well driller in a nearby town told me that the windmill is the most abused device on he farm. I believe it is true. People just don't like climbing & removing cover, and pouring in the oil.
I have a new design which still requires climbing, to connect/disconnect a quick disconnect---a one handed operation.
With this design the head cover is modified with a short piece of 3/8 copper tube inserted with a seal to prevent water intrusion with a easy to mate connector. After connection simply pump oil into head from ground via a plastic tube & climb up to disconnect when done. Elimination of cover removal & carrying oil up is a big improvement.
Working on design for oiling from ground.
Sunday, December 2, 2012
Pump rods ( sucker rod)
7/16 or 3/8 inch are normally used. They should be replaced if worn excessively, and couplings are subject to significant wear. The critical area is around well pipe couplings, the rod couplings must not have interference , this is controlled by the length of rod protruding from cylinder, and distance cylinder pulled off bottom when coupling rod to mill pump rod ( which must be all the way down).
On first stroke verify well pipe not pulled up.
Saturday, December 1, 2012
6 or 8 foot Aeromotor Head Repair
Applicable to 12 foot too.
1. Remove pitman arms.
2. Remove two big gears
3. Remove main shaft/ hub assembly.
4. Install main shaft long bearing after removing old one.
5. Install new babbit bearing between two new small gears on main shaft.
6. Key main shaft with cotter key.
7. Install rebuilt /new big gears & bearing, tighten hold down strap.
8. Install new/rebuilt pitman arms.
9. Install new trolley shaft if needed & make sure oil ring in place.
When reinstalling head, if stub pipe is old , seriously consider new stub pipe. Make sure all bolts tight on stub tower.
Fill with 1 quart for six foot aerometer, 2 quarts for 8 foot aerometer.
In operation check every three months.
1. Remove pitman arms.
2. Remove two big gears
3. Remove main shaft/ hub assembly.
4. Install main shaft long bearing after removing old one.
5. Install new babbit bearing between two new small gears on main shaft.
6. Key main shaft with cotter key.
7. Install rebuilt /new big gears & bearing, tighten hold down strap.
8. Install new/rebuilt pitman arms.
9. Install new trolley shaft if needed & make sure oil ring in place.
When reinstalling head, if stub pipe is old , seriously consider new stub pipe. Make sure all bolts tight on stub tower.
Fill with 1 quart for six foot aerometer, 2 quarts for 8 foot aerometer.
In operation check every three months.
Causes of Equipment Failures
Control boxes, timers, circuit breaker panels, knife switches, & wire are all susceptible to weather, mice, rats, & corrosion. Even crimped fittings fail due to corrosion. I have seen wire insulation heavily damaged by rodents. So, checking for this kind of damage ought to be top of the list. Also, pressure switches and timer switches usually need replacement after a few years.
Pipe Holder for well pipe
Use a 2 to 2.5 inch piece of channel iron about 6 to eight inches long with a 3/4 to inch threaded nut arc welded to it with appropriate size hole in channel iron. Tighten bolt against pipe, and rest assembly on steel plate 3/8 to 1/2 thick. If desired add additional bolts.
Pump Jacks
Pump jacks are essentially a windmill head mounted on the well pipe a few inches above the ground powered by a 1/2 to 1 hp electric motor via v belt. They are very reliable, but suffer the problems of windmills regarding pipe, cylinders, pump rods.
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