Harrington Hoists and Cranes LB Lever Hoist - (L5) - Manual (Page 18)

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4.3.3 Lifting and Lowering Operation – Operating the lever with the selector set to the lifting “UP” or the
lowering “DN” position, the hoist performs as follows:
 Set the selector to the direction of load movement desired and ratchet the lever back and forth.
Refer to Table 4-1.
 In lifting mode, the mechanical brake is engaged and supports the load on the pawls when the
lever stops.
 In lowering mode, lever operation releases the mechanical brake and lowers the load, when the
lever stops, the mechanical brake is engaged and supports the load.
 The brake is always engaged in the lifting and lowering modes.
 If hand lever movement does not produce lifting, pull down the load side of the load chain while
ratcheting until load chain slack is removed.
Table 4-1 Hoist Lever Operation
Selector Position Lever Rotation Load Movement
UP Clockwise Lift
DN Counterclockwise Lower
4.3.4

Do not operate the free chain knob in lifting or lowering.
4.3.5

Before operating, make sure that the hoist is not in the free chain mode and the
selector is in the correct operating position.
4.3.6

Under no load conditions, in the case that the load chain does not lower against
your lowering operation, operate the grip with the load-side chain pulled lightly.
4.4 Load Limit Warning Handle (LLWH) Option
4.4.1 The LLWH is designed as a load detecting device to warn an operator that an excessive load has been
applied to the hoist.
4.4.2 The LLWH is used for applications that require a load sensing feature that actuates within 10% of its
setting. Exceeding the lever pull force limit (related to 100 to 120 % of the rated capacity) compresses
the spring and deflects the lever grip. The LLWH deflects 15 degrees and registers a visual red signal
to indicate that its setting has been reached. Refer to Table 4-2.
4.4.3

Disregarding the overload sign could cause bodily harm or damage to the hoist.
Do not lift an overload.
4.4.4

Do not allow dust or foreign objects to get into the LLWH.
4.4.5

Never adjust the signal setting to greater than 100 to 120 % of the rated capacity.
4.4.6 Excessive impact on the lever may result in a malfunctioning signal or damage to the components.
4.4.7 Using the hoist recklessly may cause the LLWH to work improperly.
Table 4-2 Signal Warnings
Signal Color Load Status INSTRUCTIONS
Green Safe Load Continue Operation
Red Overload Do Not Continue Operation