3 Safety and Tools Requirements



This chapter covers the procedures and information you need to know before servicing your disk tower 1000 system.

3.1 Safety Precautions

Caution -

Use the Sun ESD kit provided when working on the disk cards. This kit contains the Sun approved Sun ESD mat which has cushioning to protect underside components, prevent board flexing, and provide ESD protection. Instructions for use are printed on the mat.

Note - A disposable ESD kit can lose effectiveness after a single use.

To protect yourself and the equipment, observe the following precautions when working on or in the chassis.

    Table 3-1 Safety Precautions 

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Item             Problem              Precaution
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Springfingers    Personal injury      The springfingers have sharp edges. Use care when handling springfinger-
                                      equipped printed circuit boards (PC boards). 
                                      
AC cord          ESD (Electrostatic   Ensure the AC cord connects the server to a grounded electrical outlet. This cord 
                 discharge)           provides a ground path for the unit to bleed off electrostatic charge.
                                      
Wrist strap or   ESD                  Wear a conductive wrist strap or foot strap when handling printed circuit boards. 
Foot strap                            Proper use of a conductive strap reduces the risk of damage to the boards by 
                                      discharging static electricity to ground. 
                                      
ESD mat          ESD                  Use the Sun ESD kit provided when working on a printed circuit board. The mat 
                                      provides ESD protection when used with a wrist- or foot strap. The mat cushions 
                                      the board to prevent breakage of any small parts that contact the bench surface.
                                      
PC boards        ESD                  Handle the PC board by the edges only. Store the board in an anti-static bag.
                                      
PC boards        Trace damage by      Hold the PC board by the edges near the middle. Do not support the board by the 
                 board flexing        ends only.
                                      
Cover panels     System damage        Install all cover panels after performing service work on the system. The panels 
                 and overheating,     keep out foreign objects to prevent physical damage to internal parts and guide 
                 regulatory           airflow to prevent overheating. Also, certain panels are required for regulatory 
                 compliance           compliance.
                                      
Air restrictor   System damage        Install air restrictor boards in all unused card cage slots. Unused, open slots 
boards           and overheating      severely reduce the cooling capability of the system and can lead to equipment 
                                      damage from overheating. 

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3.2 Tools Required

Have the following tools available before you begin: