Télécharger Imprimer la page

POWERTEX PLH-S2 Série Manuel D'utilisation page 3

Publicité

Les langues disponibles

Les langues disponibles

Function
The load hook is raised or lowered by operating the lever handle.
The load will remain where it is when the lever handle is released because of the effective reaction brake.
Max hand force need to be respected to avoid overloading of the hoist.
The Over Load Protection (OLP) versions are additionally equipped with an overload protection device that will limit the force that
can be applied using the ratchet handle.
If the OLP device is activated the lever handle will rotate but the hoist will not continue to lift, only lowering is possible.
The overload protection device is adjusted in the factory to approx. 1,3 x WLL and the device normally don't need to be adjusted
Pulling through the unloaded chain
Make sure the chain is unloaded and set the selector to neutral position (N). Pull the chain through by hand to the desired position.
Warning! If the selector is in position UP or DOWN when the chain is pulled, the lever may rotate like a propeller, which could be
dangerous.
Warning! If the lever hoist is used on a load which is too light, the brake function will not engage. The load must be at least 3% of
maximum load. For example a minimum load of 30 kg is necessary to engage the brake on a 1 tonne hoist. For lightloads choose a
smaller lever hoist.
If it proves impossible to pull the chain through despite the selector being in neutral, it may be necessary to release the brake first, by turning the
brake wheel anti-clockwise. If this does not help, set the selector to position DOWN, load the chain slightly and jerk the lever in clockwise direc-
tion. Then try again without load but with the selector in neutral.
Suspension of lever hoist
Make sure the hoist in suspended from an eye,
shackle or similar with sufficient bearing
capacity. With the chain tightened, both hooks
must be in line (Fig. 3a).
NB! Neither hoist, hooks nor chain
may be subjected to bending stresses
(Figs. 3b and c and Fig. 4).
Attachment of loads
Check the equipment well before use. Improper attachment of loads can be highly dangerous (see Figs. 4 a–e).
Only use straps and slings of sufficient load capacity. Make sure the load is not anchored to the floor/ground or is otherwise fixed before
making the lift.
Lifting/pulling
With the selector in position UP, operate the lever to tighten the chain. Check for safety before lifting the load to the desired position. If the load is
too light to be lifted, hold onto the brake wheel so you hear the snapping sound. You will then be able to lift the load with just one hand. If the lever
is released while lifting, the load will be held in its current position by the reaction brake. The lever hoist can also be used for pulling and fixing
loads.
Fig 4 a
The sling is applying
load to the hook tip!
Further safety precautions
Never lengthen the lifting lever with a pipe or similar. Use only hand power on the lever. If the load seams too heavy, use a bigger lever hoist
or reduce the load.
Make sure no-one stands beneath a hanging load.
Do not raise or lower so far that the load hook or the stop eye hits the block housing.
Do not set the selector to neutral under load.
The block must not be subjected to dynamic stresses, for example where a load connected to the block is launched from a height.
Do not leave a block with a suspended load unattended.
Lowering
With the selector in DOWN position, operate the lever to lower the load. Wait until the chain has been completely freed of load before moving the
selector to Neutral (N) to rapidly pull out the chain. (See "Pulling through the unloaded chain").
Warning: Do not overload the brake by prolonged lowering. It may cause brake function to fail.
(see Fig. 2)
Fig 3 a
Fig 4 b
Excessive top
Hook latch obstructed!
angle on sling!
α max. 60°
Fig 3 b
Fig 4 c
Fig 4 d
Hook tip subject to
additional bending stress!
3
Fig 3 c
Fig 4 e
Load chain must not
be used as a sling!

Publicité

loading

Ce manuel est également adapté pour:

Plh-s2olp série