Invicta ISG-5 User manual

Mechanical Scissor
Grab
Model - ISG-5
Description
Designed to lift, move and release numerous types of block and brick packs safely
on a building site or yard. Fully mechanically operated via the forklift (without the
driver leaving the safety of his seat) or via an overhead crane / HIAB.
Model Span
(mm)
Internal
Height
(mm)
Overall
Height
(mm)
Overall
Width
(mm)
Pad
Length
(mm)
Capacity
(kg)
Weight
(kg)
C of G
(mm) No. of
Block
Layers
ISG-5
600-1130
100-925
1430
1500
1200
2000
270
750
4
ISG-5-60
410-1185
100-1125
2200
1640
1200
1500
321
750
5
Standard Features
• External handles for ease of positioning
• Adjustable internal pack height
• Profiled hooks for attachment of optional safety net
• Fully automatic mechanism
• Segmented interchanged rubber pads
• Painted bright orange for safety
Optional Features
• Restraint Net
• Fork Mounted Yoke – refer to separate specification
sheet

INVICTA TECHNICAL FILE
OPERATION, MAINTENANCE, & HEALTH AND SAFETY INSTRUCTIONS
MODEL: SCISSOR GRAB
Operation
1. Fit the rubber pads arms to the foot of the grab (if not already fitted) and attach with two safety lynch pins
per pad arm.
2. Insert the lifting pin from the Self Locating Yoke (separate attachment) or the swivel hook (separate
attachment) through the lifting eye of the Scissor grab.
3. With the unit in the locked open position proceed towards your intend pack (if the unit is not in the open
position fully close the grab and lift again).
4. Adjust the actuator wheels (Model ISG-5 only) so that when the white nylon wheels make contact with the
top of the pack the rubber pads arms are positioned within the bottom half of the bottom row of blocks (the
actuator wheels are positioned by retracting the sprung loaded pin from the positioning hole then slide the
actuator wheel assembly to its new desired position ensuring that both sides are in the same corresponding
holes).
5. Lift the grab so that it is positioned directly above the intend pack and lower the grab until the actuator
wheels are resting on the pack (do not slam the grab down on the pack) and the grab has fully closed. Once
closed begin to lift, the rubber pad arms will then begin to close on to the bottom block of the pack, continue
to lift until the grab has lifted the pack clear of the ground/pallet.
6. Once the pack is clear slide a restraint net (optional extra) under the pack and hook the net into the four
profiled restraint net hooks in the main frame (this must be adhered to if lifting overhead).
7. Drive the forklift to the desire position and then lower the grab until the pack comes into contact with a firm
surface and actuator wheels once again resting on the pack (remove the net prior to this if fitted). The rubber
pads arms will now have released from the bottom block, but then continue to lower until the grab has fully
closed.
8. Lift the grab clear of the pack and the unit will now be in its fully locked open position ready for the next
operation.
Maintenance
1. The Scissor Grab should be inspected weekly for general condition with particular attention paid to:
A - All weld points
B - Wear & distortion of lifting eyes and rubber pad arms
C - Any damaged components
D - Locks & latches
E - Security of all nuts and bolts
F – Security and condition of Rubber Pads
2. General surface rusting especially in critical areas should be treated with proprietary inhibitors, primers and
paint on a regular basis.
3. All hinges, latches, locks, hinge points and springs must be kept lightly greased.
4. Damage or failure must be reported or rectified immediately prior to re-use of the grab.
5. This product is certified for six (6) months from the date of manufacture after which it is the customer’s
responsibility to have the product re-tested at an approved testing facility or inspected and logged in a
register by a competent person as advised by the HSE.

Health and Safety
1. The manager of the department or section where the attachment is to be used must be responsible for
ensuring the operators are fully conversant with the attachment, its operation and maintenance.
2. Never lift an unstable pack of blocks.
3. Ensure all packs are banded together.
4. Never stand between or under the grab under any circumstances.
5. Always use a restraint net when lifting overhead.
6. Ensure that the grab is lifting on the centre of gravity of its intended load.
7. Never grab beyond halfway up on a block on the bottom row of a pack.
8. Keep hands and fingers clear of all moving parts so as to prevent trapping.
9. Never shock load the grab when loaded as this may result in losing the load.
10. Always ensure that the grab is fully closed between each operation so as to ensure that the release
mechanism correctly rotates.
11. The load should be lifted and manoeuvred with a smooth unformed action, without jerkiness and sudden
changes in direction as this could temporary loose the effectiveness of gravity, which will decrease the
gripping force.
12. Ensure that the gripping surface, where the rubber pads touch the pack, is free from ice, plastic, grease etc
to ensure maximum gripping force is achieved.
The Operator should ensure that the above product is used for the purpose that it has been
designed, tested and intended to do and no deviation to this occurs. If in doubt, consult
your fork truck dealer or approved attachment supplier.