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4

1-4. Dimensions

Note: Ball nut must be kept from rotating to prevent it
from self-lowering.
Worm and gear set is not self-locking.
Use brake on worm shaft or motor.
Housing dimensions and base configurations vary.

*1˝ Lead Screw Models
Note: Dimensions are subject to change without notice.
All dimensions in inches unless otherwise specified.

Table 3.

Upright Models

Model Number

Rating

Drawing 

Ref.

A

B

C

E

F

G

H

I

J

K

L

M

UM-28632

1/2 TON

28631

RAISE + 2

5/8

2 3/8

C

0

.437

1.740

.530

2.600

1˝ Sq.

.797

.822 4 Holes - 17/64 Dia. On 2 3/32 Dia. B.C.

UM-9803 &      
KUM-2803

2 TON

9802 & 

2802

RAISE + 3 1/16

1 1/8 4 1/16

C

0

.750

2.377

.630

3 1/4

1.500 Sq. 1.194 1.104 4 Holes - 17/64 Dia. On 2 3/4 Dia. B.C.

UM-98031*     
KUM-28031*

2 TON

9802 & 

2802

RAISE + 3 11/16

1 1/8 4 1/16

C

0

.750

3.030

.630

4  13/64 1.500 Sq. 1.194 1.104 4 Holes - 17/64 Dia. On 2 3/4 Dia. B.C.

UM98004 &      
KUM-28004

3 TON

28003

RAISE + 3 3/4

1 1/8 4 1/16

4 1/2

0

.750

3.395

.832

4  15/16

2.125

1.386 1.587 4 Holes - 25/64 Dia. On 3 7/16 Dia. B.C.

UM-9806

5 TON

9805

RAISE + 4 5/8

1

5 1/4

C

0

1.000

4.333

.895

4  15/16

2.625

1.690 1.981 4 Holes - 17/32 Dia. On 4 1/16 Dia. B.C.

UM-98061*

5 TON

9805

RAISE + 4

1

5 1/4

C

0

1.000

3.648

1.020 4  15/16

2.625

1.720 1.718 4 Holes - 17/32 Dia. On 4 1/8 Dia. B.C.

UM-9811

10 TON

9810

RAISE + 6

1

5 5/8

C

0

1.000

4.333

.895

4  15/16

2.625

1.690 1.981 4 Holes - 17/32 Dia. On 4 1/16 Dia. B.C.

UM-98111*

10 TON

9810

RAISE + 5

1

5 5/8

C

0

1.000

3.648

1.020 4  15/16

2.625

1.720 1.718 4 Holes - 17/32 Dia. On 4 1/8 Dia. B.C.

AUM-9821

20 TON

9820

RAISE + 8

2 1/2

7 1/8

8 1/8

1 3/4 1.750

6.706

1.582

5 3/8

3.375

2.272 2.561 6 Holes - 21/32 Dia. On 4 3/8 Dia. B.C.

UM-9826

25 TON

9825

RAISE + 10

2 1/4

8 7/8

10 1/2

2

2.250

9.395

2.020

7 3/8

4.751

3.076 3.349 8 Holes - 25/32 Dia. On 6 1/4 Dia. B.C.

UM-2861*

50 TON

2860

RAISE + 15

3 1/4 10 7/8

12

3/4

3.250 12.625 2.020

9 3/4

5.880

3.756 4.029 6 Holes - 1 1/32 Dia. On 8 Dia. B.C.

Summary of Contents for ADM9821

Page 1: ...stallation operation and maintenance should be thoroughly familiar with the contents To safeguard against the possibility of personal injury or property damage follow the recommendations and instructi...

Page 2: ...e 7 2 1 Lubrication 7 2 2 Rebuild Procedure 7 2 3 Required Tools 7 2 4 Disassembly 7 Table 2 1 Dimensions Ball Nut Storage Arbor 8 Figure 2 2 Ball Nut Storage Arbor 9 2 5 Cleaning 9 2 6 Inspection 9 2...

Page 3: ...UM9826 UM2861 Model Numbers Inverted DM28632 KDM28031 UM98031 KDM28004 UM98004 KDM2804 DM98004 DM9806 DM98061 DM9811 DM98111 ADM9821 DM9826 DM2861 Special Actuator Upright UM38632 UM3803 UM9803 UM380...

Page 4: ...Dia B C UM98004 KUM 28004 3 TON 28003 RAISE 3 3 4 1 1 8 4 1 16 4 1 2 0 750 3 395 832 4 15 16 2 125 1 386 1 587 4 Holes 25 64 Dia On 3 7 16 Dia B C UM 9806 5 TON 9805 RAISE 4 5 8 1 5 1 4 C 0 1 000 4 33...

Page 5: ...On 2 3 4 Dia B C DM98004 KDM 28004 3 TON 28003 RAISE 3 3 4 1 1 8 3 3 4 1 750 3 395 832 4 15 16 2 125 1 386 1 587 4 Holes 25 64 Dia On 3 7 16 Dia B C DM 9806 5 TON 9805 RAISE 4 5 8 1 5 1 4 3 4 1 000 4...

Page 6: ...ted to accumulate dust and grit on the threads If possible screws should be protected by some means such as a boot 7 The ball screw and lifting nut should be checked periodically for excessive backlas...

Page 7: ...bricate all parts as required 4 All seals must be replaced when rebuilding 5 All screws washers and other small common parts must be replaced if damaged in any way 6 Replace damaged or frozen lubricat...

Page 8: ...2 and remove shell cap from shell 3 Note It may be necessary to tap shell 2 with a hammer to loosen shell cap 6 Remove ball screw 5 and gear assembly 6 from shell For ease in removing ball screw and...

Page 9: ...ar assembly and flanges 11 for burrs or scratches on their working or mating surfaces 3 Check small common components screws etc and replace as required 4 Check bearings 7 8 and 15 for seizure galling...

Page 10: ...with cap screws 9 and lockwashers 10 Care should be taken to prevent cutting of seal on worm keyway For 1 2 Ton Models Slide bushings 11a over each end of worm shaft 14 and thread bush ings into shell...

Page 11: ...actuator shell and away from ball screw pilot c Gently slide lifting nut 24 down arbor and Figure 2 3 Expansion Plug Replacement thread it onto ball screw 5 After lifting nut is completely threaded o...

Page 12: ...1 2 ton model 4 20 Nut Lock 1 10 Washer Lock 8 21 Screw Set Locknut 1 11 Flange Worm 2 22 Key 1 11a Bushing Worm 1 2 ton model 2 23 Spacer 1 12 Shim Flange 2 24 Lifting Nut 1 Section III Illustrated P...

Page 13: ...13 A Figure 3 1 Exploded Illustration 2800 and 9800 Series Ball Screw Actuators...

Page 14: ...14...

Page 15: ...15...

Page 16: ...00 Yale Industrial Products Inc P O Box 7010 Charlotte NC 28241 7010 General Office 704 588 0510 Customer Service 800 477 5002 Customer Service 704 588 4610 FAX 704 588 1994 Email duffnorton cmworks c...

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