Simplex 54212 Operational Manual Download Page 3

  •••  3  •••

2.0 TECHNICAL SPECIFICATIONS

Model

Capacity / Pair

Handle 

Effort per

(tonnes)

(N)

Stroke

(mm)

Dimensions (mm)

Side Hooks

(tonnes)

Top Hooks

(tonnes)

A

B

C

C

1

C

2

C

3

C

3

Minimum

Maximum

Minimum

CR320B

4,5

9,1

142

241

528

768

387

----

----

----

----

CR321B

9,1

18,1

134

356

877

1232

235

397

559

721

883

CRA1029R

134

295

791

1086

632

----

----

----

----

CRA1029L

134

295

791

1086

632

----

----

----

----

 

Model

Dimensions (mm)

Weight

(kg)

Maximum Minimum Maximum Length Diameter Diameter Diameter Diameter Diameter Length Width Height

D

E

F

G

H

I

J

K

L

M

N

O

CR320B

629

234

476

518

67

57

57

----

----

127

238

57

23

CR321B

----

----

----

771

79

76

61

61

61

151

248

51

58

CRA1029R

927

479

774

762

79

67

67

----

----

191

508

57

39

CRA1029L

927

479

774

762

79

67

67

----

----

191

508

57

39

3.0 JACK OPERATING INSTRUCTIONS

IMPORTANT: Refer to the decal on the side of the jack housing to locate the model number, capacity and recommended lever bar length 

for each model.

 
WARNING: Do not exceed the jack travel shown on the decal or continue to apply lever force to extend the jack after stop contact has 

occurred.

CAUTION: Be sure that the jack’s rack bar and mechanisms are free from foreign objects; otherwise it may affect the jack performance. 

Refer to Section 4.0 for proper maintenance procedure.

Placement of the jack pair: On a firm foundation, be certain the jacks are evenly supported at the base (10) and 

properly aligned perpendicular to the cable reel rod. Each jack must be properly aligned at the lifting points (7 or 

8), and supported in a manner that the jacks cannot slip or the load cannot shift. Make sure the lever bar sockets

 are facing in one direction to improve operating procedure

To Raise: Move reversing lever to the “up” position (1) on both jacks. Select the appropriate socket position 

(2) and insert lever bars (3). Make sure that the lever bars engage the full depth of the sockets. In a tandem lift 

operation, each person will grip the lever bar (3) and exert “up” and “down” strokes on each jack synchronously, 

gripping firmly and completing a controlled downward force, assuring each pawl (4 & 5) engages properly prior to each stroke completion. 

CAUTION: After each downward stroke, gradually release the downward force on the lever bars (3) making sure that the holding pawls (4) 

have engaged and the lever bars are free of the load prior to completing the upward stroke. Should the lever bars be released while under 

the load, they will suddenly “kick up”, presenting a personal injury hazard.

To Lower: Move the reversing lever to the “down” position (6) on both jacks. Select the appropriate socket position (2) and insert lever bars (3). 

Make sure that the lever bars engage the full depth of the sockets. In a tandem lift operation, each person will grip the lever bar (3) and exert “up” 

and “down” strokes on each jack synchronously, gripping firmly and completing a controlled downward force, assuring each pawl (4 & 5) engages 

properly prior to each stroke completion. 

On models CRA1029 L & R the 

cross center base brace should 

be pointing outward.

K

D

N

I

H

M

J

E
F

C

B

A

O

G

K

M

N

H

I

J

K

L

G

O

A

B

C

C

1

C

2

C

3

C

4

K

O

A
B

C

D

E

F

H

I

J

G

M

N

Reviews: