Brake And Pawl - HADEF 59/18 Installation, Operating And Maintenance Instructions

7.1.1 Free-wheeling of chain
When the unit is used appropriately, unintended activation of the free-wheeling mechanism under load is
impossible. Opening of the brake system with only small load is possible, this is no mistake.
DANGER!
Never activate the free-wheeling mechanism if the hoist is under charge.
Switching ON the free-wheeling mechanism
 Place the switch knob in middle position.
 Pull the free-wheeling wheel upwards in
direction ▲ .
 The chain can be pulled through in both
directions.
Switching OFF the free-wheeling mechanism
 Turn the free-wheeling wheel with one hand in
direction ◄ and pull the load chain at the same
time.
 Free-wheeling wheel turns back to position
OFF.
 Free-wheeling mechanism is switched OFF
NOTICE!
When free-wheeling is activated and chain is pulled through the divice, an increasind resistance
must be there with increased speed. This is no mistake .
7.2

Brake and pawl

The brake system needs a minimum load of 3% of the capacity.
Only this minimum load makes sure that the load-pressure-brake closes correctly. When the brake closes
correctly, the load is safely held.
DANGER!
Working situations with no guarantee that the minimum load is charged, are forbidden!
The brake remains closed (stuck) if:
 The ratchet lever hoist is uncharged without lowering the load, i.e. in case of vertical lifting/lowering or in
case of horizontal pulling/tensioning.
 The load hook is pulled against the housing and got stuck there.
The chain does not move, the load cannot be lowered.
Remedy:
 Charge the ratchet lever hoist again
5.52.159.00.01.04
Illustration 10
A free-wheeling OFF
B free-wheeling switched ON
Illustration 11
C Switch OFF the free-wheeling.
D free-wheeling OFF
Illustration 12
11