jurop LC 420 User Manual

INSTALLATION, USE AND MAINTENANCE MANUAL – LC
REV. 12
10-12-2021
17 / 44
Jurop SpA
Via Crosera n° 50
33082 Azzano Decimo, PN (Italia)
TEL. +39 0434 636811 FAX. +39 0434 636812
http://www.jurop.it
e-mail: info@jurop.it
• Apply the safety requirements indicated in chapter “Safety and
accident prevention” before topping-up.
• Tank capacity: 4l.
Check the oil level in the gearbox
• The oil must be topped-up with the machine stopped and cold.
• Apply the safety requirements indicated in chapter “Safety and
accident prevention” before topping-up.
• The oil level in the gearbox must reach the side discharge hole.
• For the replacement, drain the oil from the gearbox through the
lower discharge plug and top-up through the upper filling plug until it
comes out of the side discharge hole.
Dispose of exhausted oil as provided by current
specification.
• See the table in paragraph 6.1 for the frequency with which to
replace the oil.
• Top up with fresh and clean oil only; use the oil required in
paragraph 2.6 or equivalent.
• During the oil replacement, also replace the discharge plug
washer.
Checking the vanes wear LC 300-420-750
• Unscrew the vanes wear check-plug on the housing (pos. CL).
• Turn the shaft until you see the vane.
• The vanes should slide to the bottom of the seat due to gravity:
check they really do.
• Insert a rod of 6 mm Ø with its conic end towards the pump (rod
supplied with pump).
• Turn the shift manually and touch the outside diameter of the rotor
with the checking rod, mark it a first time. Keep turning the shift till the
rod falls inside a vane groove. Mark it again and measure the gap
between the two marks.
Pic. 6.1
• If this gap exceeds 10 mm, then the vanes must be replaced.
• At the end of this procedure, do not forget to replace the plug.
• Replace all vanes at the same time.
Replace the vanes when their wear exceeds 10
mm (L – L min): they may break. Replace all vanes
at the same time.
Checking the vanes wear LC580
• Unscrew the vanes wear check-plug on the front flange (pos. CL).
• Turn the shaft until you see the vane.
• The vanes should slide to the bottom of the seat due to gravity:
check they really do.
• Replace the vanes when their wear exceeds 10 m\m (L – L min):
they may break.
• At the end of this procedure, do not forget to replace the plug.
• Replace all vanes at the same time.
Pic. 6.2
Replace the vanes when their wear exceeds 10
m\m (L – L min): they may break. Replace all
vanes at the same time.
6.2. Extraordinary maintenance
• Except for the cases described below, extraordinary maintenance
on a LC must be carried out by specialized personnel only; otherwise
the guarantee will be invalidated.
• All extraordinary maintenance interventions must be carried out
when the machine is cold, stopped and switched off. Implement the
safety instructions reported in the “Safety and accident prevention”
Chapter, before performing any maintenance operation.
Follow the safety prescriptions as described in
Cap. “Safety and accident prevention”.
Adjusting the 4-way valve
Pic. 6.3

jurop LC 420 Specifications

General

Brand	jurop
Model	LC 420
Category	Water Pump
Language	English