INTRODUCTION GENERAL
On trucks without side shift, load rollers on the traverse frame fit into the channels of the inner mast.
This section has the description, disassembly, assembly, checks and adjustments for the attachment. Troubleshooting and specification tables are at the end of the section.
DESCRIPTION (See FIGURE 1., FIGURE 2. and FIGURE 3. ) The mast lifts and lowers the attachment. The N30XMH attachment has an optional side shift carriage. Load rollers on this carriage fit into the channels of the inner mast. A traverse frame mounts on the side shift carriage with rollers. A side shift cylinder connects the side shift carriage and the traverse frame. Actuation of the cylinder rod moves the entire attachment to the right or left of the lift truck. This movement is the optional ”side shift” function.
1. 2. 3. 4. 5. 6.
A boom is fastened to the traverse frame by rollers. The boom is moved left and right by a traverse cylinder and chain arrangement. One end of each chain is connected to the traverse frame. The other end of each chain is connected to the boom. As the shell of the traverse cylinder moves to the left or right, it pulls the boom in the same direction. This movement is the ”traverse” function. A rotary actuator is attached to the end of the boom. A fork carriage is fastened to the rotary actuator. The rotary actuator moves the fork carriage and forks in a 180 degree arc for left and right hand load handling. Movement of the forks in an arc is the ”rotate” function. Movement of all of these parts are controlled by the hydraulic control levers beside the seat. Information on the hydraulic valves for the attachment are in the section for the HYDRAULIC SYSTEM, 1900 SRM 559.
CONTROL LEVERS 3–STAGE MAST TRAVERSE FRAME BOOM FORK CARRIAGE FORKS
FIGURE 1. N30XMH ATTACHMENT
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