Ransburg EFM & EFMD Solvent Applicator 76480, 76482, 76485, 76488 - Manual (Page 26)

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EFM(D) Solventborne Robotic Atomizers - Maintenance
6. Remove the air cap clip [19] and fluid tip [18].
Clean using a non-polar solvent.
7. Tightly grip the plastic needle [16] and unscrew
counter-clockwise to remove the front needle
assembly. A short piece of H-2339 tubing (1/4 "
OD x 0.175" ID) pressed over the front needle will
assist in unscrewing the assembly. If required,
use needle nose pliers with masking tape or duct
tape. Carefully clean with a non-polar solvent.
Replace any parts that show signs of wear or
damage.
8. Remove fluid nozzle [15] by unscrewing
counterclockwise. Inspect o-ring [11] and all
passages for build up or damage. Clean or replace
as necessary. Reinsert o-ring into applicator
barrel and reinstall fluid nozzle. Torque fluid
nozzle to 25 lbs•in.
9. After cleaning, insert the electrode assembly
back into the spray head assembly. Apply Loctite
#222, low strength (purple) thread-locker, to the
threads of the electrode assembly [16] before
reassembly.
10. Screw fluid tip [18] back into place. Hand
tighten first, then with a small wrench, tighten an
additional 30 degrees.
11. Replace air cap clip [19], air cap [20], and air
cap retainer [21].
SERVICE SERVICE SERVICE SERVICE SERVICE
Because we want to provide our users with the
most up-to-date technology possible, we are con-
stantly seeking to improve products. If a change
in product configuration occurs after it is on the
market, we will implement that technology in future
production and, if practical, make it available to
current users. The following service information is
based on standard specifications and procedures
for this product. If you find some minor deviations
between this information and your equipment be-
cause of design or manufacturing changes, con-
tact your ITW Ransburg representative to resolve
the difference.
> If using needle nose pliers to unscrew the
front needle, be very careful. Do not grip on the
tapered sealing surface. If the pliers slip, they
could damage the tapered sealing surface of
the needle.
C A U T I O N C A U T I O N C A U T I O N C A U T I O N C A U T I O N
!!!!!
> There should be a small gap between
the fluid nozzle and the applicator barrel
after tightening.
N O T E N O T E N O T E N O T E N O T E
12. Apply a thin film of petroleum jelly to piston
spring [3]. Install piston spring and spring retainer
[2] back into the rear of the spray head assembly.
13. Screw piston cap [1] back on.
Current Output T Current Output T Current Output T Current Output T Current Output Test est est est est
1. Turn the control unit power ON ON ON ON ON.
2. Flush applicator with non-conductive solvent.
3. Activate high voltage and slowly approach the
applicator electrode with ground hook or wire.
4. Monitor the current output on LECU-5004.
Current should rise as ground approaches. At
approximately 80 microamperes, the LECU5004
will begin limiting current. If ground approaches
the applicator quickly, an overcurrent fault should
occur. The OVERCURRENT
OVERCURRENT OVERCURRENT OVERCURRENT OVERCURRENT indicator should
come on.