9
FORM NO. L-20063-AG-1216
SPRING ACTUATED
Note
Friction facing adjustment on spring actuated units is
accomplished while the brake is not actuated. Apply hold-
off air pressure of 5.17-6.90 bar [75-100 psi] to release the
spring Actuator.
1. Apply hold-off air pressure to release the spring Actuator
(See Figure 6).
Note
Before performing step two, determine the actuator type
and select either step 2a or 2b. Step four returns to general
instructions used for both models.
2.
Manually Disengage Brake:
Refer to pages 16 &
17 for manual disengagement and re-engagement
instructions.
3. Loosen the adjustment screw Spanner Nut (Item 12)
(See Figure 5).
4. Turn the Adjustment Screw (Item 8) until a 1/32 inch
spacer can be slid between each of the Friction Facings
(Item 4) and the Friction Disc (See Figure 5).
5. Turn the Adjustment Screw in until the spacer can just
be pulled out.
6. Tighten the Spanner Nut (Item 12) to 13.6-20.3 Nm
[10-15 ft-lb] torque.
Note
Ensure proper hold-off pressure has been maintained.
(This will remove any tension on the tap bolt for easier
release.)
7.
Manual Re-Engagement:
Refer to pages 16 & 17 for
manual disengagement and re-engagement.
8. Remove hold-off air pressure to engage the spring
Actuator.
Figure 6a
Obsolete Three-Port Actuator
SPRING BRAKE
SERVICE
SERVICE
Apply Hold-Off
Air Pressure
Figure 6b
Two-Port Actuator
Spring Brake
Service
9/16"
Hex Bolt
3/4" Hex
Bolt
Figure 6c
60 PSI Actuator
15/16" Hex
Head
CAUTION
This product has possible pinch
points. Care should be taken when
interacting with this product.
CAUTION
Working with spring loaded or tension
loaded fasteners and devices can cause
injury. Wear safety glasses and take the
appropriate safety precautions.
