GE HEALTHCARE
DIRECTION 2307224-100, REVISION 6DISCOVERY LS SYSTEM SERVICE MANUAL
Page 260 Chapter 9 - Planned Maintenance (PM)
9.1.1 Lubrication of PET Gantry Driving Mechanism
The recommended grease used for the PET gantry linear rail and the secondary base rails: Grease
Lithium THK AFB, Catalog Number: CH060000120.
9.1.1.1 Overview of Maintenance and Lubrication Procedure
1.) Check the PET gantry linear bearings and rail components:
a.) Verify that they are not rusty.
b.) Verify that they are not bent or distorted.
c.) Check for proper oiling and oil if necessary. Use a grease gun for this purpose.
2.) Check the PET gantry roller bearings:
a.) Verify that they are not rusty.
b.) Verify that they are not broken.
c.) Verify that the rollers rotate freely and smoothly.
3.) Check the secondary base linear rails:
a.) Verify that they are not rusty.
b.) Verify that they are not bent or distorted.
c.) Check for proper oiling and oil if necessary. Use a grease gun for this purpose.
d.) Verify the tightness of the bearings.
9.1.1.2 Quantity and Frequency of Lubrication
The lubrication procedures should be carried out every 2 years or during routine inspection if the
rails and bearings are found to be rusty or dry. The linear bearing units are filled with 3g (three full
grease pumps) AFB grease during assembly. This is the amount of grease normally used during
re-greasing.
9.1.1.3 Lubrication Kit
Table 9-2: Lubrication Kit
Part Name Catalog Number Quantity per System
Grease Gun ZT83001190K 1
Flexible Hose ZT83001195K 1
Grease CH060000120 1 Tube (400 g)
Straight Grease Fittings HY000110574 20
Tapered Adapter (Fits on the
end of the grease gun hose.)
MEc0000501 1
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