Here is my problem as best I can explain it without pictures:
1. The pusher arm assembly on my Harman Invincible T is loose. It is attached to the pusher arm pillow block bearing via a rubber grommet.
2. When I hold the top of the motor I can move it back and forth. I thought this was due to a missing motor mount bolt......
3. I found only one motor mount screw at the bottom left corner of the motor which held the motor to the pusher arm. Yet there was another mounting hole in the pusher arm that lined up with a motor mount hole at the top right of the motor. If there was a screw here, it's no where to be found. I installed a new nut and bolt thinking that would solve the probelm of the back and forth play of the motor.
4. The cam arm assembly is attached to the auger shaft and spins at 4 rpm's. When the cam arm bearing is at a 6 o'clock position it "rides" along the pusher arm and pushes it down to feed pellets into the burn pot. I think it's the auger shaft that inserts into the motor and turns this cam arm assembly as the motor turns the auger shaft.
5. Because of the back and forth play in the motor, the cam arm assembly gets stuck on the pusher arm and "jacks" in place like a stuck clock. As a result, it can't push the arm down, feed pellets to the burn pot and the stove eventually goes out. The reason it gets stuck is due to the back and forth play with the motor. I have a metal stick that is propped against the exhuast pipe and the backside of the motor. This pushes against the motor and prevents it from being loose. The cam arm assembly has be spinning without cause now for two days. However, I don't want to keep this prop there forever!
Where is the faulty part? It wasn't due to the missing motor mount bolt because the motor still has too much back/forth play. Even though the pusher arm assembly has some loose play at the rubber grommet, I don't think this is the problem as the pusher arm is mostly stantionary except when the cam arm assembly pushes it down. Is it where the auger shaft inserts into the motor? I can't see inside this "portal" because the stove is running and I would have to take the assembly apart. If so, do I need a new motor or is there another part in this portal - like a bearing - that has worn out, casuing all the back/forth play with the motor.
Local pellet dealers can order any part, but I need to narrow it down to the source of the problem. I have a manual with part listings, but it does have a picture of all the parts! Thanks in advance - Brian
1. The pusher arm assembly on my Harman Invincible T is loose. It is attached to the pusher arm pillow block bearing via a rubber grommet.
2. When I hold the top of the motor I can move it back and forth. I thought this was due to a missing motor mount bolt......
3. I found only one motor mount screw at the bottom left corner of the motor which held the motor to the pusher arm. Yet there was another mounting hole in the pusher arm that lined up with a motor mount hole at the top right of the motor. If there was a screw here, it's no where to be found. I installed a new nut and bolt thinking that would solve the probelm of the back and forth play of the motor.
4. The cam arm assembly is attached to the auger shaft and spins at 4 rpm's. When the cam arm bearing is at a 6 o'clock position it "rides" along the pusher arm and pushes it down to feed pellets into the burn pot. I think it's the auger shaft that inserts into the motor and turns this cam arm assembly as the motor turns the auger shaft.
5. Because of the back and forth play in the motor, the cam arm assembly gets stuck on the pusher arm and "jacks" in place like a stuck clock. As a result, it can't push the arm down, feed pellets to the burn pot and the stove eventually goes out. The reason it gets stuck is due to the back and forth play with the motor. I have a metal stick that is propped against the exhuast pipe and the backside of the motor. This pushes against the motor and prevents it from being loose. The cam arm assembly has be spinning without cause now for two days. However, I don't want to keep this prop there forever!
Where is the faulty part? It wasn't due to the missing motor mount bolt because the motor still has too much back/forth play. Even though the pusher arm assembly has some loose play at the rubber grommet, I don't think this is the problem as the pusher arm is mostly stantionary except when the cam arm assembly pushes it down. Is it where the auger shaft inserts into the motor? I can't see inside this "portal" because the stove is running and I would have to take the assembly apart. If so, do I need a new motor or is there another part in this portal - like a bearing - that has worn out, casuing all the back/forth play with the motor.
Local pellet dealers can order any part, but I need to narrow it down to the source of the problem. I have a manual with part listings, but it does have a picture of all the parts! Thanks in advance - Brian
