Specifications

PREVENTIVE MAINTENANCE Document No. DER05022
Effective Date 25 May 07 Page 9 of 10
b. Insert six new hex head screws through gearbox flange and into threaded mounting holes
of gearbox. Alternately turn each screw a few revolutions at a time to evenly draw the
gearbox and flange together. Tighten the screws using a star pattern typical for circular
bolt patterns. Refer to
DER05018 for required torque values.
12. Inject grease into conveyor bearing until grease escapes from drain hole located between
pillow block and liquid bowl head. Wipe off surplus grease, and distribute grease by rotating
liquid bowl head one revolution clockwise and then one revolution counterclockwise.
13. Check and adjust runout of outside diameter of gearbox as described in the steps below. Axial
runout may not exceed 0.002” total indicator reading (TIR). To measure and adjust runout,
proceed as follows:
a. Clean surface of gearbox where dial indicator plunger will make contact.
b. Install indicator holder with magnetic base in either position shown.
c. Position plunger of dial indicator into contact with outside diameter at horizontal centerline
of gearbox.
d. Manually rotate the gearbox until dial indicator is at its lowest reading, and “zero out” dial
indicator.
e. Manually rotate the gearbox until reading on dial indicator is highest; mark across gearbox
and flange along axial centerline where surfaces mate.
f. Loosen hex head screw closest to mark as well as both screws to each side of the mark.
g. Insert shim having approximate thickness of dial indicator measurement between flange
and gearbox. Shim should barely contact threads of screw hole closest to mark made in
step e (Figure 5022-7).
h. Tighten screws loosened in step f.
i. Repeat steps d through h, if required, until TIR does not exceed 0.002”.
j. Trim projecting shim stock.
Figure 5022-7 Gearbox Flange Shim Location