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Check Problem
17 Water or oil
leakage at the
saw arm drive
flange
13.3 Hydraulic unit or saw system overheats / drop in performance
Check Problem
18 Saw system
overheats
¡ Too hot to
touch
¡ Saw head
"steaming"
¡ Drop in
sawing
performance
19 LP/TS 30
saw system
¡ Overheats
¡ Sawing perfor-
mance drops
¡ Blade wanders
off cutting
line
26
Possible cause
– Water seal defective
– Oil seal defective
Possible cause
– Water supply inadequate,
water is warm
– Blade not cutting, segments
polished
– Cam-action rollers too tight
– Cam-action rollers too loose,
play at saw head
– Saw blade overloaded, too
soft, blade takes on blue colour
Signs of friction / scoring on
sides of blade
– Saw blade motor speed too
high
– Very high steel reinforcement
content, very hard concrete
or hard aggregates
– Unsuitable saw blade
Solution / action required
– Check at the radial hole in the saw
blade flange
– Have the saw head serviced
Solution / action required
– Water flow rate 10 l/min.
– Water flow at least 5 l/min.
– The water should be cool
(tap water < 20° C)
– Connect water supply to lower connection
– Sharpen saw blade
¡ Use sharpening plate, 51343/2
¡ Make a cut in abrasive brick or
on concrete with very little water
¡ Diamonds must be exposed on
the surface of the segments
– Adjust the tension of the cam-action
rollers
– Mount the rail securely, see page 12
– Do not overload the saw blade,
saw at a reasonable cutting depth
– When cutting at great depth ≥ 60 cm
(blade diameters 1500 /1600 mm),
make guide cut using 800 mm dia
blade with 5 mm wide segments
– Select the correct saw blade
specification (for high power)
– Run at speed or oil flow rate
according to recommendations
(see table on LP 30 / LP 20)
– Reduce load (advance slightly
from time to time or allow blade
to rotate at low speed WITHOUT
LOAD for 2–3 minutes from time to
time
– See saw blade operating
instructions
4 mm
6 mm
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