Hitachi D-135 8 track player/recorder repair
 

Got is out of a dumpster, stretched belt as usual but after belt
replacement the motor still can't manage to play the tapes without skew,
there's no trouble moving flywheel and tape transport seems to be fine,
the problem is even with fresh repaired cartridges.
It's so easy to stop the spinning motor with my fingers that i wonder if
it's normal, however the motor spins freely without power.
Any suggestions on how i could fix this?
My first test would be applying external power to the motor.

Cheetah

Hitachi D-135 8 track player/recorder repair
 

What is `skew` ? Many times the tape head gets dirty or off track so
the music sounds very muffled . Other thing is the motor speed gets off
..

Hitachi D-135 8 track player/recorder repair
 

CheetahHugger wrote:
Got is out of a dumpster, stretched belt as usual but after belt
replacement the motor still can't manage to play the tapes without skew,
there's no trouble moving flywheel and tape transport seems to be fine,
the problem is even with fresh repaired cartridges.
It's so easy to stop the spinning motor with my fingers that i wonder if
it's normal, however the motor spins freely without power.
Any suggestions on how i could fix this?
My first test would be applying external power to the motor.

Cheetah

check the surface of the capstan which contacts the tape....

-B

Hitachi D-135 8 track player/recorder repair
 

The problem is a weak motor, i have 6V on the motor but it takes so
little effort to stop the motor that i wonder if i have a power fault or
bad motor, capstan and flywheel are ok. Everything moves freely.
The motor just can't pull it, faulty motor?

Cheetah

Hitachi D-135 8 track player/recorder repair
 

CheetahHugger wrote:
The problem is a weak motor, i have 6V on the motor but it takes so
little effort to stop the motor that i wonder if i have a power fault or
bad motor, capstan and flywheel are ok. Everything moves freely.
The motor just can't pull it, faulty motor?

Cheetah

Does the motor turn freely if not a little lubricant might help.

Hitachi D-135 8 track player/recorder repair
 

Does the motor turn freely if not a little lubricant might help.

Again, everything moves freely, that includes the motor shaft which i
can spin by hand and it will take some time to stop so no, the motor
is not jammed, neither any other parts so again my question, am i
dealing with a faulty motor (how likely?) or is there a power problem.
At first i'd say power is good but you never know.

Cheetah