REV
.
11
30-05-2017
INSTALLATION
,
USE AND MAINTENANCE MANUAL
JULIA 3000-5000-7000-8000-8500-9000
-
HP
30 / 51
Jurop
SpA
Via Crosera n° 50
33082 Azzano Decimo, PN (Italy)
T
EL
.
+39
0434
636811
F
AX
.
+39
0434
636812
http://www.jurop.it
e-mail: info@jurop.it
• Installation and maintenance must be operated only by qualified personnel.
• The following scheme indicates the main checks to be completed and their intervals.
Operating
Condition
Maintenance area
Checking
8
H
50
H
500
H
1000
H
1500
H
O
PERATING
Julia Group
Lubrication
Rotating speed
Working pressure
Noise
S
TANDSTILL
Vacuum Pump
Check the oil level (both tank and gearbox)
Clean filter
Check vanes wear
Centrifugal Pump
Clean filter
Centrifugal pump washing (*)
Gear box oil level
Seal: check and greasing
Oil change (gear box)
PTO Pump
Transmission joint: lubricate with grease (**)
High pressure pump
Oil change; valves and seals check (see pump manual)
Transmission joint: lubricate with grease
Overall
Shaft axe: check
(*): Wash the centrifugal pump more often in case thick sludge is sucked. Wash
the impeller before a long period of stand-by.
(**): Lubricate the transmission joint when a check of the system is required or
during a pump’s review.
6.1. Ordinary maintenance
• Packing seal greasing (optional): periodically, with NLGI 2 grease.
Fig. 6.1 describes the correct procedure for the packing seal greasing.
Fig. 6.1
• Checking seal tune: seal rings must be clean; for the placement
proceed one at a time and turn them about 90° to each other.
• Packing seal tune: fasten the screws acting on the fork. Do no
tight excessively as the screws may break.
Warning: do not excessively fasten the screws
acting on the fork, as they may break.
• Start up the centrifugal pump and check if the leakage has been
stopped.
• If the leakage does not stop or does not slow down, replace the
packing seal.
• Fig. 6.2 shows the correct packing seal correct set up.
Fig. 6.2
• Mechanical seal: The liquid cools down and lubricates the seal.
• Periodically suck clean water in order to grant the correct
operation. Alternatively, wash the housing inside by pouring clean
water through the service hole.
• Fig. 6.3 shows the correct cleaning of the mechanical seal.
6. Maintenance
