Replace
Replace
Replace the
the
the Bearings
Bearings
Bearings
1.
Follow
Pressure Relief Procedure, page 12
2.
With the bleeder type main air valve (A) turned
off, remove the twenty hex bolts (S) with a 13mm
wrench or socket and then remove the four sheet
metal covers (T) from the front and back of the
proportioner. The left rear cover may contain
a sensor attached to a cable. Do not remove
the sensor, but carefully set the cover to the
side without straining or damaging the sensor or
cable. The (D) four main bearings (X) are now
exposed.
3.
Remove the thumb screws (P) and the two
guards (R) from the sides of the proportioner.
4.
Using an adjustable wrench (or hammer and
punch), unscrew the coupling nuts (10, 11, 12)
from each of the rod adapters (N) on the two
displacement pumps and the air motor. Do not
lose or drop the coupling collars (M). See Fig. 6.
5.
The left rear bearing shaft has a magnet stuck
on its end. Remove the magnet and put it in a
safe place. Use a snap ring pliers to remove the
four snap rings (Y) from the shafts and remove
the retaining washers.
6.
You should now be able to slide the bearings (X)
off of the shaft ends.
7.
Replace the bearings only with identical
Graco replacement parts. Pack the bearings
in Industrial Grade 1, Heavy Duty, Extreme
Pressure, Lithium Soap Grease, Graco Part
Number 110293 or equivalent.
8.
Re-install the new bearings (X) onto the shafts.
Doing so may require slightly shifting the shaft
assembly which may have dropped during
bearing removal.
9.
Re-install the four retaining washers and their
snap rings (Y).
10. Replace the magnet onto the end of the left rear
bearing shaft.
11. Make sure the coupling nuts (10, 11, 12) and
the coupling collars (M) are in place on all three
rod adapters.
12. Screw all three (C) coupling nuts (10, 11, 12)
onto the rod adapters (N) loosely. Hold each
rod adapters flats with a wrench to keep it from
turning. Use an adjustable wrench to tighten the
coupling nuts. Torque to 196–210 N.m ft-lb).
13. Replace the covers (T) and the bolts (S).
14. Replace the two guards (R) and the thumb
screws (P) onto the sides of the proportioner.
15. Turn on the air supply. Follow the procedure for
starting the pump on page (L). Run the pump
slowly at first to ensure proper operation.
Figure 4 Bearing Inset
3A3092A
21
Содержание Hydra-Cat Xtreme XL
Страница 25: ...Notes Notes Notes Notes 3A3092A 25 ...
