Ridgid DP15501 User Manual

For your own safety 

turn switch “OFF” and remove plug 
from power source outlet before 
making any adjustments. To reduce 
the risk of injury from thrown parts 
due to spring release, follow 
instructions carefully and wear eye 
goggles.

 The return spring tension is set at

the factory and should not require further
adjustment.

f you switched your drill press from 

hand operation to 

 hand operation, fol-

low the procedure below to adjust spring
tension.

1. With the chuck at its highest possible

position, turn the depth scale clockwise
until it stops and tighten the depth
scale lock. This will prevent the quill
from dropping while tensioning the
spring.

 For right hand operation (feed

handle on right side) turn the depth scale

 until it stops and

tighten the depth scale lock.

2. Check to make sure spring housing is

mounted correctly. When spring hous-
ing is placed on the right side (feed
handles mounted on left side), the
housing screws face out as shown.
When spring housing is placed on the
left side (feed handles mounted on
right side), the housing screws face
toward the head as shown.

3. Lower table for additional clearance.
4. Firmly hold the spring assembly

against the head keeping it engaged
with the 4mm cap screw while loosen-
ing and removing the outer nut only.

5. Loosen inner nut (approximately 1/4

inch) and disengage spring housing
from the 4mm cap screw. Using both
hands turn spring 

 to the

next notch and engage with the 4mm
cap screw.