VALVE GP 6J6218 - Caterpillar

Secure the system cabinet output riser using the hardware provided.Refer to Illustration 2.You are now ready to install the MMU cabinet riser assemblies.MMU Cabinet Riser Assembly
The MMU risers require some assembly and adjustment. The adjustment allows you to fit the wire way where height adjustment for leveling the wire way is necessary.
Illustration 3 g02446897
Assembled MMU cabinet riser (typical) (2) MMU riser adjustment bolt holes (3) MMU riser base (4) MMU riser adjustable wire way
Remove the MMU cable entry plate from the top of the MMU cabinet.
Assemble MMU wire way riser as shown in the following diagram.
Bolt the two lower halves of the MMU riser into position on the MMU cabinet top.
Illustration 4 g02447696
Assembled MMU cabinet riser (typical) (5) Adjustable riser (6) Riser base
Adjust height and horizontal location to allow the wire way to set flush and level on top of MMU riser. Refer to Illustration 4.
Repeat steps 1 through 4 for each MMU installed in the system.
Refer to "Wire Way Support Bracket Assembly" section of Operation and Maintenance Manual, SEBU8853, "Wireway" for more information.Wire Way Support Bracket Assembly
There is one wire way support bracket per MMU. You need no additional hardware to attach the bracket to the MMU cabinet.
Loosen the skin screws (but do not remove) at either side of the plenum found at the top of the cabinet.
Illustration 5 g02447736
Wire way support bracket assembly (7) Side skin screw holes (8) Wire way brace (9) Wire way riser
Insert the wire way support bracket between side skin screw head and plenum.
Illustration 6 g02447738
Support bracket in place with installed wire way (7) Side skin screw holes (10) Wire way support bracket (11) Wire way bottom (12) MMU cabinet
Leave the screws loose enough to adjust the wire way support bracket height as required to help support wire way, then secure.The wire way rests on top of the support bracket. Refer to Illustration 6.Standard Configuration Wire Way Box Assembly
Illustration 7 g02448264
Installing standard system cabinet wire way box (13) System cabinet wire way box (14) System cabinet (15) MMU cabinet
Assemble the wire way box starting with the system cabinet.
Place the wire way box onto the system cabinet risers and support brackets.
Mount wire way box onto the cabinet risers with supplied hardware.
Adjust using the slotted holes to alter alignment and height until riser, support brackets, and wire way box are square and as level as possible.
Repeat steps 3 and 4 for each MMU installed in the system.Standard Configuration Wire Way Control Wiring Duct and Edge Guard Installation
Install the control wiring duct after the risers and wire way box are installed and secured to the system cabinet and MMU cabinets.
Illustration 8 g02448301
Installing wire way edge guard (16) Wire way edge guard
Install the edge guard on the upper part of the wire ways vertical flanges. Refer to Illustration 8.
Install control wiring duct to wiring duct bracket.
Illustration 9 g02448600
Standard configuration system cabinet wire way with control wiring duct and ground bus (17) Terminals on ground bus (18) Duct bracket (19) Ground cable from MMU (20) Ground from system cabinet (21) Duct (22) Duct bracket