Sounds like a problem related to overheating of the motor, which resumes running when the thermal overheat protector resets. Possibly the bearings are worn putting a strain on the motor's rotation. Or possibly accumulation of lint blocking airflow to keep it within operating temperature.
Access to the interior is by removing the two screws beneath the lint screen lid (don't drop them down the lint chute). Then the top is raised by releasing clips near the front corners .. slip a putty knife into the seam to depress the clips.
The front panel is anchored by two screws inside near the top corners. Disconnect the door switch wires, or in some instances the wires are long enough to set the front panel leaning against the side of the machine. Tilt the front panel forwards to clear the rim of the drum, lift it upwards to slide it off two clips at the bottom corners (the clips sometimes come loose from fitment into slots on the front edge of the cabinet).
The drum will remain in the cabinet, anchored by the belt that wraps 'round it, although it'll tip forward without support of the front panel.
Look under the drum to find the belt idler/tension assembly, note how the belt routes through it. Release the belt from the idler and motor pulley and the drum can be removed from the cabinet for clear access to examine the motor.
The rear panel also comes off for access to the heating element.
Just to say, the full model number includes the leading 110 ... format of 110.7018602. The leading three digits indicates the source manufacturer. 110 is Whirlpool.
The serial M10113227 indicates manufacture in first week of January 1971.