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Pull the brushes out - remove 3 screws holding gearcase to handle & remove gearcase with armature from handle.
More than likely you will find the field inside the handle is melted down & binding the armature up. Depending on how long it ran smoking you may have cooked the armature as well.
Sounds as though you are on the right track. I would take it apart, and see if the trigger could have some dirt or other material causing it to stick, or is it worn to the point that it needs to be replaced. Good luck!
If there is any of the old bolt still protruding from the housing, you may be able to force it out using a pipewrench, or other Stud-retracting tool. There is also a tool called an 'Easy-Out'. You drill a small hole in the bolt, and and this tool goes into the hole, and as you turn it, it 'grips' the old bolt, turning it out.
If these methods fail, then;
You will have to drill them out, and re-tap the threads in the holes. If the material that the bolts go into (the body of the pump) is made from a soft metal like aluminum, then you must be very careful when drilling, you must drill very straight. A Drill Press is recommended for this. After you have drilled out the old bolts, then get the proper Tap, and make new threads in the holes. Since you are making new threads, you will probably have to go to the NEXT bigger size of bolt, but make sure there is enough room, and material in the housing to accomodate the next larger size bolt.
If you go with the 2 bolt you will need (I presume) to drill 2 holes into the tile.
put toilet in place where it will sit and mark the holes , take away toilet and drill the holes with a 7ml tile drill bit (masking tape put over the tile will help you to not slip when starting off the hole). Drill deep enough to insert 7ml rawl plugs. then place the toilet back and fix down with screws long enough to go through the toilet and 3/4 of the rawl plug.
You will need;
Electric percussion drill or descent battery drill.
7 ml tile drill bit
2 x rawl plug 7ml
2 x screw
masking tape is handy
hope this helps,
Alex
if you have a new lock & key assembly,you can drive a small chisel or stout flat blade screwdriver into the old key hole about as far as a key would go. with a wrench on the chosel,turn it like you would the key to open it.now look inside,there is a clip or a nut holding the cylinder in place.R&R.
Heating of hydraulic fluid in operation is caused by inefficiencies. Inefficiencies result in losses of input power, which are converted to heat. A hydraulic system's heat load is equal to the total power lost (PL) through inefficiencies and can be expressed as:
PLtotal = PLpump + PLvalves + PLplumbing + PLactuators
If the total input power lost to heat is greater than the heat dissipated, the hydraulic system will eventually overheat.
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