Hilti D-LP 20, Руководство по эксплуатации

Страница: 26 / 32

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