Test Ground Strip Resistance; Test Cylinder Resistance - Graco 333013B Instructions - Parts Manual

Electrical Tests
3. If the resistance is still outside the range, remove
the conductive ring (33) and measure the resistance
between the conductive rod (B) and the wire lead at
the bottom of the conductive ring groove.
4. If the resistance is in range, replace the conductive
ring (33) with a new one. Insert the ends of the con-
ductive ring into the slots (S) at the front of the bar-
rel, then press the ring firmly into the groove.
S
The conductive ring (33) is a conductive (metal) con-
tact ring, not a sealing o-ring. To reduce the risk of fire,
explosion, or electric shock:
• Do not remove the conductive ring except to
replace it.
• Never operate the gun without the conductive ring
in place.
• Do not replace the conductive ring with anything
but a genuine Graco part.
5. If the resistance is still outside the range, replace
the gun barrel.
33
F . 22 Test Gun Barrel Resistance
IG
30
G
C
B

Test Ground Strip Resistance

Using an ohmmeter, measure the resistance between
the latch housing (206) and the ground lug (214). The
ground strip is grounded through the cart back to the
ground lug. Resistance must be less than 100 ohms. If
greater than 100 ohms, replace the ground strip (240).
206
F . 23 . Test Electrode Resistance
IG

Test Cylinder Resistance

Remove the enclosure door. Using an ohmmeter, mea-
sure the resistance from the pump (209) to the ground
lug (214). Resistance must be less than 100 ohms. If
greater than 100 ohms, replace the grounding cylinder
(227).
F . 24 Test Cylinder Resistance
IG
214
333013B