5
FORM NO. L-21272-C-0215
INSTALLATION
NOTE: Refer to Figure 2.
1. Insert the Key (Item 31) into the output shaft of the
FMBS.
2. Slide the FMBS output shaft into the gear reducer.
3. Secure the FMBS to the gear reducer using customer
supplied cap screws and lock washers.
4. Complete steps 1-7 from Section A.
SECTION A: MOUNTING ON THE SHAFT END OF A MOTOR
SECTION B: MOUNTING BETWEEN A GEAR REDUCER AND MOTOR
NOTE: Refer to Figure 1.
1. Insert the Key (Item 31) into the motor shaft keyway.
2. Remove the four Hex Head Cap Screws and Lock
Washers (Items 26 & 27) to separate the Input Housing
(Item 6) from the Disc Plate (Item 4).
3. Secure the Input Housing (Item 6) to the motor face
using Nexen supplied Socket Head Cap Screws and
Lock Washers (Items 33 & 32). Tighten cap screws
to 1425 in-lbs (161 Nm).
4. Secure Disc Plate (Item 4) to the Input Housing (Item
6) using Hex Head Cap Screws and Lock Washers
(Items 26 & 27).
5. Tighten Hex Head Cap Screws (Item 26) to 200 in-lbs
(22.6 Nm).
CAUTION
Do not lubricate either the brake bore or the
motor shaft. Any lubricant on the contact
surfaces could result in torque transfer failure
of the clamp collar. If necessary, clean the
shaft with a non-petroleum based solvent,
such as isopropyl alcohol and wipe dry before
assembly.
6. Tighten Socket Head Cap Screws (Item 28) to 325
in-lbs (36.7 Nm).
7. Install the Housing Guard (Item 50) over the open
areas of the FMBS, and secure it using the provided
fasteners.
FIGURE 2
Hex Head Cap Screws
& Lock Washers
(Items 26 & 27)
Key
(Item 31)
Socket Head
Cap Screws
(Item 28)
FMBS
Input Housing
(Item 6)
Socket Head Cap
Screws & Lock Washers
(Items 33 & 32)
Housing
Guard
Disc Plate
(Item 4)
Motor
Gear Reducer
FIGURE 1
Hex Head Cap Screws
& Lock Washers
(Items 26 & 27)
Key
(Item 31)
Socket Head
Cap Screws
(Item 28)
FMBS
Input Housing
(Item 6)
Socket Head Cap
Screws & Lock Washers
(Items 33 & 32)
Housing
Guard
Disc Plate
(Item 4)
Motor
