Pentax HP Manual Del Usuario página 59

6. MAINTENANCE
OIL LUBRICATION (Fig. 37)
Use high quality mineral-base oil with anti-corrosion and anti-foam additives.
Hereafter some recommended type of oil:
AGIP ............................. Acer 46 - Blasia 68
ESSO ........................... Teresso 68
SHELL .......................... Tellus Oil 68
MOBIL .......................... DTE 15 - DTE 16
IP .................................. Hidrus 68
CASTROL .................... HY SPIN VG 46
Supports must not be contaminated by any solids or by any fluid infiltration
which can damage the bearings.
Check periodically the oil neutralization number and the oxidation
grade (please contact the manufacturer for reference values).
The frequency of oil change depends on the operation conditions and on the
kind of service. High working pressures usually require frequent oil changes.
Oil lubrification intervals (actual operation hours).
First change Folliwing changes
300 hours
6.2 • DISASSEMBLY INSTRUCTIONS
– Shut down the pump unit.
– Close all the gate valves on the delivery and suction piping, and on the other
auxiliary connections (fluxings, coolings).
– Shut down electrical supply.
– In case of oil lubrication, drain the oil.
– Disconnect the pump ports from the piping and the auxiliary connections.
– Remove the coupling guard.
– Disconnect the feeding cable from the motor.
– Unscrew the screws which fix the pump.
– Move back the motor and uncouple the pump.
– Unscrew the screws which fix the pump.
For pump disassembly in detail, please contact the Manufacturer or a skilled authorized
technician.
ATTENTION! Never force the parts when disassembling!
ø nominal
HP25 1-2
HP32 2
2
105
HP50 4
6 118
118
2
HP80 4 130
6 145
148
2
HP100 4
158
6
2
192
HP125 4
6 195
2
232
HP150 4
240
6
2
HP250
4
Max. durations
3000 hours 6 months
SUCTION IMPELLERS
Nominal clearance
min max
0,30 0,39
0,30 0,39
0,30 0,39
0,30 0,39
0,30 0,39
0,30 0,39
0,30 0,39
0,40 0,49
0,40 0,49
0,40 0,50
0,40 0,50
Oil filter plug
Oil sight gauge
max clearance
ø nominal
after wear
72
78
92
0,80
107
0,80 118
132
1,00
138
1,20 174
208
1,50
220
270
24
Oil drain plug
Fig.37
STAGE IMPELLERS
Nominale clearance
max clearance
after wear
min max
0,3 0,39 0,75
0,3 0,39 0,75
0,30 0,39
0,80
0,30 0,39
0,30 0,39
0,30 0,39 0,80
0,30 0,39
0,30 0,39
1,00
0,30 0,39
0,40 0,49 1,20
0,40 0,50
1,50
0,40 0,50
0,40 0,50 1,50
0