User's Manual

Installation

3.5 Basic Hardware Installation—Nutbars and Spring Nuts

The Knurr DCM is designed with T-slots on exposed faces of the aluminum frame members. These

T-slots permit placing nutbars and spring nuts anywhere along a frame member to mount equipment

at any distance desired (see Figure 4). Nutbars and spring nuts accept M5 and M6 screws used to

attach most equipment and options to the rack’s aluminum frame members.

Figure 4 T-slot configuration and nutbar

3.5.1 Inserting a Nutbar or Spring Nut

To insert a nutbar or spring nut into a T-slot on the Knurr DCM frame, compress the spring on the

back of the nutbar and slip it into the T-slot (see Figure 5). If the nutbar or spring nut does not

flatten out into the slot, press down on the edge of the block that is too high.

Properly installed nutbars and spring nuts have the thread hole section on the outer side of the T-slot

(see Figure 5). The leaf spring holds the nutbar or spring nut in place while a screw is threaded and

tightened. Nutbars and spring nuts can be pressed down with a small tool and moved for better

alignment.

Nutbar, Front (above)

and Back (below)

Leaf Springs Stabilize

Nutbar in T-Slot

"W700" and "W800"

Stamped on face of

M5 nutbar

Cross-Section of Horizontal

Knurr DCM Frame Member

T-Slots

Spring Nut

Leaf Spring Stabilizes

Spring Nut in T-Slot

T-Slots

Cross-Section of Vertical

Knurr DCM Frame Member