Operating Instructions_VF335_en.pdf - 第332页
8|Service and maintenance 8.6.9 Checking the nitrogen flow to the solder level monitoring 1 2 Checking and setting the nitrogen flow ü To check the nitrogen flow for monitoring the solder level: a) For each soldering m…
8|Service and maintenance
ü Check and adjust the nitrogen input pressure
a) Visual inspection of the pressure reducer. For each soldering unit, a pressure
reducer is available.
b) Read the current pressure on the pressure gauge (1) and compare it with the
data on the label (3).
ð If pressure has been set too low:
c) Remove the adjusting knob (2) pulling it upwards and change the pressure by
turning the adjusting knob until the correct pressure is displayed.
d) Press the adjusting knob down again.
ð The process has now been completed.
Ersa GmbH Operating Instructions_VF335_en|Rev. 14|30/11/2017 331/695
8|Service and maintenance
8.6.9 Checking the nitrogen flow to the solder level monitoring
12
Checking and setting the nitrogen flow
ü To check the nitrogen flow for monitoring the solder level:
a) For each soldering module, a flow meter is available. The flowmeters (2) are
located above the soldering modules on the right side, behind the cover plate.
b) On the adjustment knob (1), set a value of at least 0.15 l/min.
c) Repeat the procedure with all available flow meters.
ð The process has now been completed.
Ersa GmbH Operating Instructions_VF335_en|Rev. 14|30/11/2017 332/695
8|Service and maintenance
8.6.10 Solder level monitoring: Check for proper operation
This kind of maintenance work must be performed while the solder is liquid! There-
fore, the following safety instructions must be strictly followed:
DANGER
Severe or fatal injury from hot machine!
The entire machine is hot during operation and contains liquid metal!
a) Service on the hot machine may only be carried out by specially trained staff,
qualified for this type of work! For these types of work, a company internal oper-
ating procedure for protective clothing is to be issued!
b) You should always take into account the possibility for metal to spray out!
c) Special care is required when refilling the pot and working on the pot!
NOTE
Use suitable protective equipment!
When performing any work on a hot pot, protective clothing must be worn:
a) Safety shoes
b) Face protection
c) Heat resistant gloves
d) Heat resistant apron.
1 2
Fig.106: Checking the function of the solder level monitoring
ü Checking the function of the solder level monitoring:
Ersa GmbH Operating Instructions_VF335_en|Rev. 14|30/11/2017 333/695