User's Manual

Chapter 3 - Cabinet Installation
Confidential and Proprietary Information of ZTE CORPORATION 35
2. Determine positions of four holes for installing channel steel according
to engineering design drawing. See Figure 9 for single.
F IGURE 9 - D RAWING LINES FOR S INGLE C ABINET T OP V IEW (UNITS MM)
1
5
0
0
1
2
0
0
4
8
0
7
5
0
After drawing lines, measure lines once again to verify them.
3. Drilling holes
Drill φ14 holes, each 3.54 inch (90 mm) depth at marked positions for
ground expansion bolt holes. Keep drill bit vertical while drilling holes
with a percussion drill. Hold driller firmly and press downwards. Use
vacuum cleaner to clean dust while drilling.
4. Expansion Bolt Installation
Put expansion bolt with tube in drilled hole and hammer it. Fix bolt
with nut using spanner and remove nut for cabinet installation. Torque
should not exceed 45 N-m. Figure 10 shows this process.
F IGURE 10 - EXPANSION B OLT I NSTALLATION