Pioneer PDM-4001 Technical Manual page 112

Mounting standard metal fixtures (PDM-4001)
5) Securing the multiple installation fixtures, cradles and base plate
1. When securing cradles and multiple installation fixtures, mount them by inserting M10 bolts into ø12 x 8 holes and
using M10 nuts and washers, which are located on the bottom panel of a fixture as shown below.
2. Use M10 x 8 bolts and M10 X 8 washers to secure cradles and base plate, using ø 10 x 8 holes on the bottom side
of the cradle and M10 X 8 taps on the base plate.
* Make sure to place the base plate on a flat and horizontal floor.
* When the base plate is not secured to the floor, the multiple installation fixtures can be stacked up to two units in
addition to the two-unit cradles, and up to 3 units in addition to 3-unit cradles.
* When securing to the floor, see the Procedure 3 in Page 113.
Two-unit base
plate for two units
112
400
870
Three-unit base
plate for three units
8ø 12 through hole