Maintenance - Terrier FHX Owner's Manual

- Check whether the teeth of the cam are free from dirt, and if necessary clean with a wire
brush.
- Remove any grease, dirt and mill scale from the plate at the site of the lifting clamp.
- Open the clamp.
- Place the jaws as far as they will go over the plate, making sure that the clamp is positi-
oned so as to balance the load when it is being lifted.
- Lift gently so that the lifting force can be applied; check whether the clamp is rotating or
tilting.
- If the clamp is rotating or tilting read the fore mentioned remarks on lifting again.
- Ensure that the load is in a stable position.
5b LIFTING WITH THSK CLAMPS
- Place the clamp onto the plate (cable or chain already attached to the tooth segment; and
take care that the chain of cable is not twisted);
- Tighten the clamps firmly by hand;
- Tension the cables or chains with the crane hook, while the inside of the jaws presses
firm-ly against the edge of the plate (note: due to the fact that the clamp does not have
a con-stant pre-tension available on the tooth segment, it will be necessary to watch the
position of the clamps until the cables are tensioned: make sure the clamps stay in the cor-
rect posi-tion).
- The load can now be lifted carefully.
- During the transport of the load, take care that a constant tension is maintained on chains
or slings.
- To unhook, the crane hook should be lowered so far that the clamp is completely free of
any load (note: make sure that when the load is lowered, there are no obstacles underne-
ath where the load could rest on during lowering and whereby the clamps will become
unloaded to early by accident).
- The clamps can now be removed from the load.
6

MAINTENANCE

- Check the general condition of the clamp at least once a month, see Chapter 7 - Disas-
sembling/Assembling.
- Do not use the clamp if:
- the body is split or deformed, in particular in way of the jaw corners,
- the cam has been visibly deformed,
- the cam teeth are no longer sharp,
- the shackle pins have visibly been deformed,
- any retaining pins are missing,
- the marking on the clamp is no longer legible.
Depending on the defects noted:
disassemble and clean the clamp (see Chapter 7 - Disassembling/Assembling) or have the
clamp overhauled by Terrier Lifting Clamps B.V. or another recognized mechanical repair
center (see Chapter 8 - Overhauling).
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7a DISASSEMBLING/ASSEMBLING FHX, FHSX, FHX-V, TDH CLAMPS
The clamps can be easily disassembled for
cleaning and inspection purposes. Please
make use of the following procedure.
- Remove the retaining pin (4) and the
cam pin (3).
- Remove the cam (2).
- Clean all parts with a stan-dard degrea-
sant.
- Grease the cam pin (3) with bearing
grease.
- Assembling the clamp is in reverse
order.
- Always insert new original retaining
pins (4) with the aid of a hammer, com-
bination pliers and pin punch.
- Always use original Terrier components
when replacing parts.
- Remove any burr with a file.
7b DISASSEMBLING/ASSEMBLING THSK CLAMPS
The THSK clamp can be easily disassem-
bled for cleaning and inspection. Please
make use of the following procedure.
- Remove the tension pin (6) with the use
of a pin driver from the tooth segment
shaft (5).
- The tooth segment shaft can now be
pushed out of the frame and the tooth
segment (3) can be remo-ved.
- Remove the hairpin pegs (7) and the
pins (4), and the two side plates (2) can
be taken from the clamp.
- Clean all the parts with a standard deg-
reasant.
- Assembling of the clamp is in reverse
order.
- Always use original Terrier components
when replacing parts.
- Remove any burr with a file.
2
1
4
3
4
5
2
3
4 1
6
7
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