Graco Therm-O-Flow 20, Instructions - Parts Manual

Page: 24 / 66

Service
24 309858K
Removing Pump from Air Motor
1. Follow steps 1-9 of Removing Pump from Ram,
page 23.
2. Remove the remaining shrouds from the pump.
3. Remove the coupling nut (4), which attaches the
pump to the air motor. Be careful not to lose the
coupling collar (3). F
IG
. 11.
4. Remove the nuts (1) from the stand-off rods (2), and
separate the pump from the air motor.
5. To access the bare pump, remove the pump's:
• insulation
• 2 heater bands
• sensor block
6. Reverse the above procedure to reconnect the
pump to the air motor. Be sure to:
• Reinsert the coupling collar (3) into the coupling
nut (4) with the large flanges pointing up
• Apply RTV sealant to the pump shrouds before
assembling them
For more information, see manual 310530, or call your
Graco distributor.
Removing Follower Plate
Refer to page 41.
1. Remove the pump by following steps 1-12 of the
Removing the Pump Assembly procedure.
2. Remove the sensor wires from the follower plate
(13).
3. Disconnect the follower plate wires from the junction
box on Bulldog/King pumps or control box on Presi-
dent pumps (F
IG
. 12, 13, or 14).
4. Loosen the coupling nut (122) from the follower con-
duits and from the sensor (119) conduit.
5. Remove the air line from the blow-off valve (103).
6. Remove the 6 screws (109) and washers (108).
7. Slide off the follower plate (13).
F
IG
. 11
1
4
3
2
13
Remove excess armored portion of sensor supplied with heated
follower (13) prior to installing into junction box.
1
1
122
119
103
109
108