ABB RHD Series Service Instruction

10 RHD250 to 4000 (Contrac) ELECTRICAL ROTARY ACTUATOR | SEI/RHD250/4000-EN REV. A
… 4 Maintenance
… Lever
Note
The ball-and-socket joint may be mounted / removed with the
lever mounted on the shaft or with dismounted lever. If the lever
remains mounted on the shaft, move it into a position, where
you get free access from the rear lever side.
Removal
1. Pull the cotter pin
1 out of the castle nut 2.
2. Screw-off the castle nut.
3. Put an appropriate draw-off tool
3 onto lever 4 and joint
bolt
5 (see Figure 6 for details); make sure that the
claws
6 grip symmetrically behind the lever and that the
bolt tip is on the joint bolt center.
4. Put a wrench onto the opposite bolt end and turn the bolt
clockwise.
5. Press the joint bolt out of the lever.
Installation
1. Push the bolt of the ball-and-socket joint into the lever hole.
2. Put the crown nut onto the bolt and tighten it with the
required torque, refer to Tightening torques and dimensions
of lever screws on page 10 for torque values.
3. Secure the crown nut with a new cotter pin
1.
Tightening torques and dimensions of lever screws
Actuator
Clamping Screw
Limit stop screw
Crown nut
Expanding screw
(tightening torque)
(tightening torque)
(tightening torque)
(diam. / min. length / min. thread length)
RHD250
M12×50
-8.8
(79 Nm / 58 ft-lbs)
M12×35
-8.8
(79 Nm / 58 ft-lbs)
M18×1.5
(165 Nm / 122 ft-lbs)
8 mm / 35 mm / 25 mm
RHD500 / RHD800
M16×80
-8.8
(195 Nm / 144 ft
-lbs)
M16×35
-8.8
(195 Nm / 144 ft
-lbs)
M28×1.5
(370 Nm / 273 ft
-lbs)
8 mm / 45 mm / 25 mm
RHD1250 / RHD2500
M20×110
-8.8
(390 Nm / 288 ft-lbs)
M24×55
-8.8
(670 Nm / 494 ft-lbs)
M30×1.5
(455 Nm / 336 ft-lbs)
10 mm / 55 mm/ 20 mm
RHD4000
M20×120
-8.8
(390 Nm / 288 ft-lbs)
M24×55
-8.8
(670 Nm / 494 ft-lbs)
M38×1.5
(750 Nm / 553 ft-lbs)
12 mm / 65 mm / 35 mm

ABB RHD Series Specifications

General

Brand	ABB
Model	RHD Series
Category	Controller
Language	English