Chief Manufacturing Adjust Lower device Mounting Brackets, left, Model PAC-251

Installation Instructions		Model: PAC-251
3	Adjust Lower device Mounting Brackets
device	1.	Position two device holding brackets (20) so that
		they are at their outermost position. (see detail in
		figure at left)
	2.	Slide device into rack until resting on two lower
		device mounting brackets (30).
	3.	Slide two device holding brackets (20) forward
		until they contact device.
30	4.	Tighten two 1/4-20 Nylock nuts (70)
20

10

70

4	Install Upper Device Mounting Brackets
	60 (2 places)
	WARNING: IMPROPER INSTALLATION CAN
	LEAD TO DEVICE FALLING! All mounting brackets
	must be securely fastened to device rack.
70 (4 places)	IMPORTANT ! : Make certain device holding
	brackets (20) are oriented as shown in figure at
	left.
	1. Install two upper device holding brackets (20) into
	slots in upper device mounting brackets (30)
30	using two 10-24 Nylock nuts (70).
	NOTE: DO NOT tighten hardware at this time.
	2. Position two upper device holding brackets (20)
	so that they are at their outermost position. (see
	detail in figure at left)
	3. Secure two upper bottom device mounting
	brackets (30) to device rack (10) using two 10-24
	x 5/8" round head carriage bolts(60) and two 10-
	24 Nylock nuts (70).
	device
20	10

5