Lincoln Electric K1655-10-LTA 2.0, Operator'S Manual

Page: 38 / 68

D-3
MAINTENANCE
The extraction arms have been pre-balanced in the factory for
optimal balance and positioning. However, they sometimes need
adjustment. To check and adjust the balance system, proceed as
follows.
If the entire arm falls on its own:
(See Figure F.1, items A and B)
• Tighten bolt (A) on the hinge fan side to increase spring tension.
Ensure spring does not turn as you tighten. Turn bolt on each
spring equal amounts. See Figure F.2.
If the hood section of the arm falls on its own:
(See Figure F.3, item B)
• Tighten bolt (A) in middle hinge to increase spring (B) tension.
Ensure spring does not turn as you tighten. See Figure F.3.
Bring the extraction hood to a horizontal position. The hood should
stay in this position. See Figure F.4.
If the extraction hood falls on its own:
• Pull back the arm band seal and flexible hose.
• Push the corrugated cover (Item A Figure F.5) back to expose
the wrist joint.
• Use a ½” wrench and ½” socket and ratchet to adjust the
bolt/nut pairs as shown Turn bolt (See Figure F.6 Item A) in
the hood hinge clockwise to tighten extraction hood.
• Replace the flexible hose and secure it with the arm band
seal.
If the extraction hood does not maintain a horizontal position
(left/right)
• Pull back the arm band seal and flexible hose.
• Turn bolt (See Figure F.6 Item B): in the hood hinge clockwise
to tighten horizontal movement.
• Replace the flexible hose and secure it with the arm band
seal.
1. Bring the arm (including extraction hood) to a horizontal
position. The arm should maintain this position. See Figure
F.4.
FUME EXTRACTION ARMS
13
A
B
A
FIGURE F.6 - HOOD ADJUSTMENT
FIGURE F.1
A B
FIGURE F.2
A
FIGURE F.3
A
B
FIGURE F.4 - HOOD ADJUSTMENT
FIGURE F.5 - HOOD ADJUSTMENT