Product Manual

LM-series fork-mountable booms 01/11

The center of gravity has a vertical component as well as a horizontal component. The vertical center of gravity is

located 13 in. (~33 cm) above the bottom edges of the fork pockets. The horizontal component ranges from 28 inches

to 47 inches measured from the outer edges of the fork pockets. As shown in the diagram above:

 Retracted horizontal center of gravity (RHCG)

: boom fully retracted with a load attached at position A, the

center of gravity is located 28 inches (~71 cm) from the outer edges of the fork pockets;

 Extended horizontal center of gravity (EHCG)

: fully extended with a load attached at position J, the center

of gravity is located 41-1/2 inches (~105 cm) from the outer edges of the fork pockets.

 All other combinations (of boom extension and load position) yield horizontal centers of gravity located at

or between RHCG and EHCG.

FIG. 2B: LM-OBT- 4K, 6K & 8K CENTERS OF GRAVITY AND MAXIMUM LOAD RATINGS FOR VARYING LOAD

ATTACHMENT POINT AND BOOM EXTENSION COMBINATIONS

RHCG

EHCG

VCG

Model EHCG RHCG VCG

LM-OBT-4k 47

in. (~120cm) 31

in. (~81cm) 14

in. (~36 ½ cm)

LM-OBT-6k 44

in. (~112cm) 31 in. (~79cm) 14

in. (~36 ½ cm)

LM-OBT-8k 51

in. (~131cm) 35 in. (~89cm) 15 ¼ in. (~39cm)

LM-OBT-4k

LM-OBT-6k

LM-OBT-8k

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