Choke Replacement; Varistor Replacement - Graco E Series Instructions-Parts List Manual

WARNING
Before doing this procedure, follow the Pressure
Relief Procedure Warning on page 21 to reduce
the risk of a fluid injection injury, splashing in the
on
eyes or the skin, injury from moving parts, or
electric shock.
Fig
Refer to
2. Remove the grounding screw (312) and remove the
lead. Loosen the appropriate screw on the terminal
strip (336) and disconnect the yellow/green choke
lead.
3. Use the M8 wrench to remove the upper nut and
lockwasher (337,338) on the outside of the pressure
control box.
4. Remove the old choke (309) and install a new one in
the reverse order of disassembly.
WARNING
Refer to Fig 25-2 and
2. Remove the two screws (AB), the wiring harnesses
(318, 319) and the old varistor from the ON/OFF
switch (302).
on
3. Trim the leads the new varistor (339) to 28.5 mm.
Turn each lead outward to form a
enough for the screws (A, B) to pass through.
4. Place a wiring harness on each screw, then place a
loop of the varistor leads on each screw and thread
the screws into the switch.
5. Wrap the varistor under the switch.

CHOKE REPLACEMENT

Fig 25-1

VARISTOR REPLACEMENT

loop
that is large
Fig 25-3
318
319
A
FRONT VIEW
FORM LOOP LARGE
ENOUGH FOR SCREWS
TO PASS
309
SIDE VIEW
THROUGH
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