Nexen SBPA05 964950 - Manual (Page 5)

FORM NO. L-21067-C-0813 5
INSTALLATION
NOTE: Refer to Figures 1, 2 & 3.
Prior to performing any installation steps, Nexen
recommends applying air pressure to the Servo Brake.
When air pressure is applied, the brake will remain
engaged, and the shaft will not rotate. This will aid in the
following installation operations.
1. Place the Clamping Collar (Item 7) on the input
(female) end of the servo brake shaft. Finger tighten
the cap screw until the Collar is nearly snug. Then slide
the Collar down the Shaft until it is firmly against the
shaft step.
NOTE: The Clamp Collar for size 4 and 5 requires two cap
screws to provide necessary clamp load.
2. Remove the Access Plugs (Item 14) from the Input
Flange (Item 10). Rotate the Clamping Collar (Item
7) until the cap screw is lined up with the access
hole. Then insert an Allen driver or a T-handle wrench
through and engage the head of the cap screw. Leave
this driver or wrench in place while you perform the
next two steps.
CAUTION: Do not lubricate either the Clamping
Collar or the Shaft. Any lubricant on the contact
surfaces could result in torque transfer failure. If
necessary, clean the Shaft with a non-petroleum
based solvent, such as isopropyl alcohol, and wipe
dry before assembly.
3. Slide the Motor Shaft into the input (female) end of the
Output Shaft (Item 1) until the Flanges of the Motor
and Brake come together.
4. Using four customer-supplied Socket Head Cap
Screws (See Table 3), bolt the Flanges together.
Tighten the cap screws evenly to the recommended
torques listed in Table 3 (Page 7).
5. Using the Allen driver or wrench used in Step 2,
tighten the cap screws in the Clamping Collar (Item
7) to the recommended torque listed in Table 2 (Page
7).
CAUTION: Under-tightening the Collar may cause
slippage between the motor and the Brake. This
can cause damage to the System, Motor and/or
Brake.
6. Reinstall the Access Plugs (Item 14) into the access
holes on the Input Flange (Item 10).
FIGURE 2
FIGURE 1
FIGURE 3
INSTALLATION ONTO MOTOR SHAFT
Servo Motor
Output Shaft
(Item 1)
Clamping Collar
(Item 7)
Input Flange
(Item 10)
Access Plug
(Item 14)
DANGER
Support the load before disengaging
the brake. Failure to support the load
could result in serious bodily injury.