308925
78
Care of the System
Clean the Static Mixer
Visually inspect the static mixer (G)
weekly
. Replace
the static mixer if clogged or damaged.
1.
Follow the
Pressure Relief Procedure
on page 21.
2.
Remove the hose (35) from the static mixer (G).
3.
Unscrew the static mixer (G) from the mix manifold
(17).
4.
Push the mixer element out of the static mixer by
inserting a wooden dowel at the adapter (H) end.
Clean all parts with a compatible solvent, and
reassemble.
5.
Install the static mixer (G). The arrow on the static
mixer must point down. Apply tape and sealant to
the threads of the static mixer.
Fig. 97
1
2
8344A–part
35
H
G
17
Arrow must point down.
Apply tape and sealant to threads.
1
2
Care of the Premier Pump Throat Packing
Nut/Wet Cup
The throat packing nut/wet cup (J) should be inspected
and filled on a weekly basis, or more frequently if
found to be dry. See Fig. 98.
1.
Follow the
Pressure Relief Procedure
on page 21.
2.
Turn off the main air valve.
3.
Remove the screws (469) and the two guards
(424, 446) from the sides of the proportioner. See
Fig. 99.
4.
The wet cups should be 1/3 full of Graco Throat
Seal Liquid (TSL) or compatible solvent.
5.
The packing nuts are torqued at the factory and
are ready for operation. Check the tightness of the
packing nut weekly. If it becomes loose and there
is leaking from the throat packings:
a.
Follow the
Pressure Relief Procedure
on
page 21, before adjusting the packing nut.
b.
Tighten the packing nut to the torque for your
lower model, using the wrench supplied. See
the table below. Do not over-tighten the pack-
ing nut. Too tight an adjustment causes the
packings to bind or wear prematurely and leak.
Pump Lower
Packing Nut Torque
Dura-Flo 600 (236458)
45–55 ft-lb (61-75 N
m)
Dura-Flo 900 (236470)
100–110 ft-lb (136-149 N
m)
Dura-Flo 1200 (237514)
100–110 ft-lb (136-149 N
m)
J
1
Fig. 98
04373
1
See torque requirements, above.
Содержание SuperCat 232721
Страница 23: ...308925 23 Notes...
Страница 82: ...308925 82 Service 8753A Fig 100 A B 497 446 385 361 381 442 363 311 312 363 442 361 381 385 424 469 458...
Страница 98: ...308925 98 Parts 8789A 8337A 53a 53b 53c 54a 54b 54c 54d 54e 56 54f 70 50 14 15 10 12 13 64 1 69 31...
Страница 111: ...308925 111 Notes...
Страница 112: ...308925 112 Dimensions 8787A 42 in 1067 mm 66 in 1676 mm 74 in 1880 mm...