RIDGID 690 - Manual (Page 3)

Ridge Tool Company
Tools For The Professional TM
600-690
TROUBLE SHOOTING
Warning
Each remedy with has to be repaired by a qualified electrical craftsman.
Disconnect power cord.
TROUBLE SHOOTING POSSIBLE CAUSE REMEDY
- motor does not start - interruption of supply
- fuse has been blown
- brushes do not touch armature
- examine the supply
- install a new fuse
- check the brushes, renew used brushes
- motor cannot be loaded - short circuit
- overload because of dull dies
- bad quality or insufficient thread cutting oil
- look for the short circuit and resolve
- renew the dies
- use RIDGID thread cutting oil in adequate
quantity
- abnormal heating of the motor - overload because of dull dies
- insufficient cooling air
- renew dies
- clean the air-vent opening of the motor
- sparks forming at the motor - dirty commutator
- bad contact between brushes and brush holder
- because of excessive wear brushes do not
touch commutator properly
- brushes of different manufacture
- sharp edge of brush
- please send in for repair
- tighten the screws, make sure brush is pressed
firmly onto commutator
- change worn brushes
(replace only with genuine commutator properly
RIDGID brushes)
- only use original brushes
- break edge
- “sparks” in the motor compartment - particles come loose from brushes or armature
(collector) and start glowing
- send machine in for repair
- die head does not start threading - dull or broken dies
- machine running in wrong direction
- change dies
- check setting of the direction switch
- damaged thread - dull dies
- dies not assembled in correct sequence
- low quality pipe
- bad quality or insufficient thread cutting oil
- change dies
- put dies in correct sequence
- make sure only pipe of good quality is used
- use only RIDGID thread cutting oil in adequate
quantity
- support arm turns while threading - support arm jaws dirty - clean with wire brush
- die heads cannot be changed properly - burr has occurred at the spline end of the die
head
- eliminate burr with file
- die head not held tightly - retaining spring damaged or worn - replace retaining spring