Repair Section Index; General Repair Notes - Graco A Series Instructions-Parts List Manual

REPAIR SECTION INDEX
General Repair Notes 2 1
Procedure
Page
Motor Brush Replacement
...................................
22
Power Supply Cord Replacement
..........................
23
ON/OFF Switch Replacement
..............................
23
Bridge Rectifier Replacement
...............................
24
Circuit Breaker Replacement
................................
24
Circuit Board Replacement
..................................
25
Pressure Control Replacement
.............................
26
Stall Pressure Calibration
....................................
27
Drive Housing Replacement
29
Bearing Housing 8 Connecting Rod Replacement
a
Motor Replacement
...........................................
30
Parts Lists B Drawings
Sprayer
..................................................
32, 33
Pressure Control
............................................
34
Circuit Board
................................................
35
How To Order Replacement Parts
.....................
33
.........................................
.....
.................................
The following tools ara needed when repairing this
sprayer.
Phillips screwdriver
Small flatblade screwdriver
Needle nose pliers
Plastic mallet
Adjustable wrench
2 " adjustable, open-end wrench
Torque wrench
1 1 4 " hex key wrench
3/16" hex key wrench
3/8" open end wrench
5/8" socket wrench
l/2" open end wrench
314" open end wrench
7/8" open end wrench
High quality motor oil
Bearing grease
NOTE: See separate manual 307-793 for displace-
ment pump repair. F o r calibration procedure on@:
3/0" ignition wrench
0.016" sDrav
tin
~~~~~
High pressure, oil-filled
test
gauge, Pert No. 1 0 2 - 8 1 4
5 gallon pail
Clean water
Mineral spirits
NEW 3WO psi (207 bar) high pressure spray hose,
" ~ - ,
~~r
Part No. 214-915.
GENERAL REPAIR NOTES
ing general repair notes and the repair procedure. Be
Before repairing any part of the sprayer, read the foilow-
sure you have the necessary tools and parts available.
1. When disconnecting wires in the pressure control
assembly, use needle nose pliers to separate mating
connectors.
When reconnecting the wires, be sure the flat blade
wrap-around blade of the female connector when
of the insulated male connector is centered in the
the connection is made.
CAUTION
tion, be sure to properly mate connectors, and
wire could loosen the connector from the wire.
never pull on a wire to disconnect it. Pulling on a
2. Route wires in the pressure control esaembly
tube, where appropriate, to avoid interfering with
carefully through the legs of the U-shaped bourdon
the bourdon tube which moves es the pressure set-
ting changes and to avoid pinching the wires bet-
ween the pressure control box end cover.
CAUTION
performance or damage to the pressure control.
Improper wire routing can result in poor sprayer
3.
Keep
all
screws, nuts, washen, gaskets, and elec-
trical fittings removed during repair procedures.
These parts are not normally provided with replace-
ment assemblies.
4. Test your repair before regular operation of the
sprayer to be sure the problem is corrected.
repair procedure again to verify that everything was
If the sprayer does not operate properly, review the
done correctly.
If
necessary, refer to the
tifv
other possible problems and solutions.
Troubleshooting Guide, pages 13-20, to help iden-
WARNING
To reduce the risk of serious bodily injury, in-
cluding electric shock, DO NOT touch any moving
parts or electrical parts with your fingers or a tool
complete the inspection.
Shut off the sprayer end unplug
it 8s
soon as you
before operating the sprayer.
Reinstall ell covers, gaskets, screwa and washers
-while inspecting the repair.
: . , .
CAUTION
seconds to avoid damaging the pump peckings.
Do not run the sprayer dry for more than 30
5. Reinstall the motor cover before regular operation
of the sprayer end replace
it
if it is damaged. The
cover directs cooling air around the motor to help
prevent overheating.
I t
can
also
help prevent bums,
fire or explosion; see the WARNING, below.
During operation. the motor becomes very hot
WARNING
end could burn your skin if touched. Flammable
cause e fire or explosion. Always have the motor
materials spilled on the hot, bare motor could
cover in place during regular operation to reduce
the
risk
of burns, fire or explosion.
307-758
21