Operating Instructions_VF335_en.pdf - 第319页
8|Service and maintenance ð You should feel a regular air flow. Increase convection ü To check the increase convection: a) In the [Preheating] input dialog in the [Convection] frame, click first on the button and then …
8|Service and maintenance
8.5.4 Compressed air heating: Visual inspection
DANGER
Risk of burns from hot surfaces!
a) Allow the heater to cool to room temperature before carrying out service and
cleaning work!
1
2 2
Fig.96: Compressed air heating
Standby air flow
ü To check the standby air flow:
a) In the [Preheating] input dialog, in the [Convection]frame, click on the
but-
ton.
ð The button is displayed in yellow.
b) Hold your hand under blow pipe (1).
Ersa GmbH Operating Instructions_VF335_en|Rev. 14|30/11/2017 318/695
8|Service and maintenance
ð You should feel a regular air flow.
Increase convection
ü To check the increase convection:
a) In the [Preheating] input dialog in the [Convection] frame, click first on the
button and then on the one.
ð Buttons are displayed in yellow.
b) Hold your hand under the blow pipe (1).
ð You should feel an air flow increase.
Air hoses
ü Visually check air hoses:
a) Inspect hoses (2).
ð Hoses must be soft, flexible and transparent.
a) Have heavily discoloured, porous or hardened hoses replaced by qualified staff.
ð The process has now been completed.
Ersa GmbH Operating Instructions_VF335_en|Rev. 14|30/11/2017 319/695
8|Service and maintenance
8.5.5 Solder feeding: visual inspection
14 1
3
5
6
6
7
2 5
Fig.97: Solder lead
Visual inspection of solder lead
ü Inspecting solder lead visually:
a) Carefully turn the rolls (1) back and forth.
ð The bearing (4) must be easily accessible.
b) Check cover pipe (3) and spring (2). Clean the dirty pipe, make jammed spring
movable. Remove solder residue and foreign matter.
c) Have the damaged pipe or damaged spring replaced by specialised staff.
d) Check sensor (5). Remove solder residue and foreign matter.
e) Cover the sensor (7, optional) with the hand.
ð The corresponding lamp (6) should go out.
f) Repeat the process for each available solder supply.
ð The process has now been completed.
Ersa GmbH Operating Instructions_VF335_en|Rev. 14|30/11/2017 320/695