Preventive Maintenance; Safety Inspection Guide; Lubrication Specifications - Lexmark T520 - 20ppm 8MB Par USB Pcl6 Ps3 Ppds Service Manual

4520-xxx

6. Preventive Maintenance

This chapter describes procedures for printer preventive mainte-
nance. Following these recommendations can help prevent prob-
lems and maintain optimum performance.

Safety Inspection Guide

The purpose of this inspection guide is to aid you in identifying
unsafe conditions.
If any unsafe conditions exist, find out how serious the hazard could
be and if you can continue before you correct the hazard.
Check the following items:
•
Damaged, missing, or altered parts, especially in the area of the
On/Off switch and the power supply.
•
Damaged, missing, or altered covers, especially in the area of
the top cover and the power supply cover.
•
Possible safety exposure from any non-Lexmark attachments.

Lubrication Specifications

Lubricate only when parts are replaced or as needed, not on a
scheduled basis. Use of lubricants other than those specified can
cause premature failure. Some unauthorized lubricants may
chemically attack polycarbonate parts.
Use IBM no. 10 oil, P/N 1280443 (Approved equivalents: Mobil
DTE27, Shell Tellus 100, Fuchs Renolin MR30), IBM no. 23 grease
(Approved equivalent Shell Darina 1), and grease, P/N 99A0394 to
lubricate appropriate areas of the machine.
Preventive Maintenance
6-1