Mounting modular brake units (mbu), Housing guard installation, Mounting modular units onto mounting feet – Nexen MBU-875 930200 User Manual

Page 8

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8

FORM NO. L-20134-J-1211

ALL MODELS AND MOTOR TO A REDUCER

1. Place the Key (Item 19) into the output shaft of the Modular

Unit and slide the output shaft of the Modular Unit and motor
into the reducer.

2. Rotate Modular Unit and motor until holes in Modular Unit

are aligned with holes in reducer flange, and air inlet ports
of Modular Unit are facing down.

3. Using four Hex. Head Cap Screws, secure Modular Unit

and motor to reducer.

4. Alternately and evenly tighten the four Hex. Head Cap

Screws, making sure the Modular Unit and reducer faces
are flush with each other.

TABLE 1

MOUNTING MODULAR BRAKE UNITS (MBU)

(continued...)

HOUSING GUARD INSTALLATION

Each Modular Unit is provided with a Housing Guard. After
combining the Modular Units, install the Housing Guard so one of
the ribs of the Modular Unit housing is directly beneath the clamp
on the Housing Guard. Tighten fastener to 35 in-lbs [4 Nm].

Waterproof guards are also available. Purchase waterproof
guards from your local Nexen Distributor.

MOUNTING MODULAR UNITS ONTO MOUNTING FEET

U-SHAPED MOUNTING FOOT

Refer to Figure 8
1. Depending upon the desired air inlet orientation, remove

two Hex. Head Jam Nuts, Bolts, and Lock Washers from
the Modular Input Unit.

2. Set the Modular Unit onto the U-Shaped Mounting Foot.

3. Secure Modular Input Unit to U-Shaped Mounting Foot using

the Hex. Head Bolts supplied with Mounting Foot.

L-SHAPED MOUNTING FOOT

Refer to Figure 9.
1. Set the Modular Unit onto the L-Shaped Mounting Foot.

2. Secure Modular Unit to Mounting Foot using Hex. Head

Bolts supplied with L-Shaped Mounting Foot.

FIGURE 7

HOUSING GUARD

FIGURE 8

U-SHAPED FOOT MOUNT

FIGURE 9

L-SHAPED FOOT MOUNT

CAUTION

When mounting sheaves or sprockets,

refer to Table 1 for overhung load data.

Exceeding the data in Table 1 will result

in premature failure to the Modular Unit.

A

T

A

D

D

A

O

L

G

N

U

H

R

E

V

O

L

E

D

O

M

M

P

R

e

c

a

F

t

o

li

P

m

o

r

f

]

m

m

4

.

5

2

[

''

1

d

a

o

L

*

5

2

6

5

7

8

U

B

M

0

0

2

1

0

0

8

1

s

b

l

1

2

3

s

b

l

1

8

2

s

b

l

1

2

3

s

b

l

1

8

2

U

O

M

0

0

2

1

0

0

8

1

s

b

l

1

2

3

s

b

l

1

8

2

s

b

l

1

2

3

s

b

l

1

8

2

U

I

M

0

0

2

1

0

0

8

1

s

b

l

9

7

2

s

b

l

4

4

2

s

b

l

9

7

2

s

b

l

4

4

2

.r

i

a

i

s

p

0

5

g

n

i

s

u

d

n

a

e

fi

l

e

g

a

r

e

v

a

.

s

r

h

0

0

0

,

0

1

n

o

d

e

s

a

B

*

WARNING

Ensure proper guarding of the product is

used. Nexen recommends the machine

builder design guarding in compliance

with OSHA 29 CFR 1910 “Occupational

Safety and Health Hazards”.

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