Maintenance Operations; Problems, Causes And Solutions; Operational Problems - BM2 BIEMMEDUE MAXIMA Série Manuel D'emploi Et D'entretien

GB

8. MAINTENANCE OPERATIONS

Attention
All the operations described in this paragraph must only
be carried out by professionally qualified personnel.
Attention
Use only original spare parts; contact technical assis-
tance centres for any requirements you may have.
For regular and safe functioning of the machine, it is necessary to
periodically carry out the operations set out in the rest of this para-
graph.
Attention
Before starting the operation it is necessary to:
• stop the machine in accordance with the instructions
set out in the "STOP" paragraph;
• disconnect the electricity supply, removing the plug;
• turn off the water supply tap and unscrew the water in-
let pipe.
CONTROL OF LEVEL AND PUMP OIL CHANGE
The oil level in the pump must be periodically checked using the
appropriate level control rod. The oil must be replaced after the first 50
on hours of functioning and subsequently every 500 hours of opera-
tional activity, using SAE 20/30 antifoam oil; to replace the oil, it is nec-
essary to unscrew the oil discharge cap, allowing the oil to drip into a
container for liquids (see Fig. 8).
Level
control
window
Discharge
cap
The oil collected must not be dispersed in the environ-
ment, but disposed of in compliance with current laws.
Screw on the discharge cap and introduce oil from the upper hole,
up to cover the half of the control window.

9. PROBLEMS, CAUSES AND SOLUTIONS

The table below lists the main functional problems, with relative causes and solutions. If you have a problem that is not listed, or for information re-
garding different causes and solutions, contact one of our technical assistance centres.

OPERATIONAL PROBLEMS

• The high pressure cleaner does not start
• Having pressed the switch, the motor makes
• a noise but does not start
• When functioning, the machine stops and the
telltale comes on
•
Loading
cap
Fig. 8
• Electricity supply interrupted or insufficient
• Thermal protection intervention
• The mains voltage is less than the minimum
• required
• Electricity supply interrupted or insufficient
• Intervention of the motor thermal protection due
• to excessive absorption of current
WATER FILTER CLEANING
The filter, which is located inside the rubber fitting at the inlet to
the H.P. pump, must be frequently cleaned and carefully remounted to
avoid any air intake (see Fig. 9).
H.P.
Pump
Rubber fitting
(water inlet)
DETERGENT FILTER CLEANING
The filter must be cleaned every time washing is carried out with
injection of detergent product. After disassembling it, it is necessary to
immerse it in water for a few minutes (see Fig. 9).
HIGH PRESSURE NOZZLE REPLACEMENT
The high pressure nozzle, mounted on the lance, is a component
subject to wear; it is therefore necessary to periodically replace it. Wear
can be identified by a drop in the functional pressure of the high pres-
sure cleaner; when carrying out replacement, contact your retailer (see
Fig. 10).
H.P.
Nozzle
CAUSES
• Check the specifications of the electricity supply
•
• Check the electricity connections
• Reset
• Check that the mains supply is adequate
• Check the specifications of the electricity supply
•
• Check the electricity connections
• Check that the water nozzle corresponds to
•
• Clean the water nozzle
• Adjust the bypass valve
• Allow to cool for a few minutes
22
Filter
Rubber pipe
Fig. 9
Fig. 10
SOLUTIONS
that declared as standard
Detergent
tap
Detergent
filter