3
Wiper comes down but does not retract
•
Slot in
thread guide solenoid bracket base needs to be lubricated. Apply
black grease in the shaded area of the Wiper Assembly Parts
Breakdown.
•
Magic tapes in thread presser base assembly are either missing or
damaged. (See Wiper Assembly Parts Breakdown)
•
Thread presser base misadjusted or bent. (See checking thread presser
base and cover alignment)
•
Spring is stretched, missing or not hooked correctly. (See Wiper
Assembly Parts Breakdown)
•
Nut on positioning spacer, B is either loose or missing. Apply thread
adhesive to thread to prevent nut from coming off. (See Wiper Assembly
Parts Breakdown)
•
Thread guide solenoid bracket base is misaligned or scratched at the
bottom of the slot. (See checking thread guide solenoid base)
•
Lower arm cushion is cracked, missing or the screw has broken off
causing the positioning spacer, B to damaged the bottom of the thread
guide solenoid bracket base. (See Wiper Assembly Parts Breakdown)
•
Bent presser foot
•
Wiper holder plate is bent or not adjusted correctly. (See checking wiper
holder plate)
Wiper comes down and retracts but does not grab the upper thread.
•
Nut on positioning spacer, B is either loose or missing. (See Wiper
Assembly Parts Breakdown)
•
Upper thread guide hook is not adjusted correctly. (See Wiper holder
plate adjustment)
