Lenovo ThinkSystem Heavy Duty Unpacking Instructions Manual page 10

Identify rack cabinet components
Figure 15. Parts listing
Table 1. Heavy Duty Full Depth 42U Rack Cabinet components
1
Rack cabinet frame
2
Rear door
3
Side covers
4
Outriggers (side stabilizers)
1 1 0 0
8
Keys (doors and side covers)
9
Leveling pad
10
Tools
11
Fixed caster