5(3/$&(0(172)/,1(56
8.1
GENERAL
Do not wear the liners through. It may damage
the surfaces in the crusher frame and head.
These surfaces can only be repaired by
welding and machining.
The wear of the liners can be checked from the
Lokoset display or by measuring the distance
between the mantle tightening nut and the
bottom of the top bearing housing. With new
liners the distance "A" about 165 mm (6-1/2")
(figure 8.1.1).The liners must be replaced
latest when the distance "A" is 5 mm (3/16")
or distance"B" is less than 3 mm (1/8") (figure
7.2.1), or damage may result.
Change the liners earlier if they wear out due
to uneven feed.
There are two cavity shapes for G-Cone
10-series secondary crushers:
Cavity
Feed opening
GP200S EC
330 mm (13")
GP200S C
250 mm (10")
The part numbers of wear and spare parts
needed for liner change are shown in the spare
parts manual.
The concave consists of two parts. When
changing to different cavity, both parts must
be replaced. With new liners the distance "B"
is about 16 mm
±
5 mm (5/8"
±
3/16") (figure
8.1.1) measured from machined surfaces.
When changing new liner due to wear, it may
be necessary only to replace the lower part of
the concave and the mantle. Then secure that
distance "B" is greater than 3 mm (1/8"). There
must always be a gap. If needed, change also
the upper part of the concave.
Never remove the upper frame from the
intermediate frame without removing first the
wedge fastening of the upper concave.
Before installing the liner, remove the anti-rust
compound properly from the machined
surfaces. Use suitable hand tool (scraper or
grinding machine with sandpaper-type tool) to
remove excessive paint or dirt stuck in the
paint. Remove possible transport damages,
rust, etc., with a grinding tool.
Figure 8.1.1 The liners must be replaced
latest when the distance "A" is 5 mm (3/16")
or distance"B" is less than 3 mm (1/8").
Liner replacement
GP200S
12/99
140548
8-1
