Nimco WK-300-1-0, Manual

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Directional Control Valve
4
Series CV 652
General Information
The WK300 and WK350 are a new generation cable control joysticks designed to withstand today’s
machine operator’s high demands for ergonomic design, low operating efforts and long life.
The WK300 is equipped with a ABS composite base optimized for agriculture applications while
the WK350 has a metal plate that will allow its use in the roughest environment.
The joysticks design allows the hand lever, via its base plate, to operate directly on to the cable and
thereby avoid any loss of stroke as with other conventional cable controls. This, in combination
with low friction cables and low spring forces in the valve, allows the operator to utilize the entire
lever stroke when operating the spool and thereby enhancing load control and safety.
All the parts including the base plate, the base foundation, the lever and the handgrips are designed
and tested to withstand over 1 million cycles.
The WK300 and WK350 are both designed for the Nimco 4K-series cable which has a spherical
ball attachment at the end of each cable that attaches to the base plate directly. This also eliminates
any hysteresis in the joystick movements.
A new ergonomically designed handgrip allows for up to five electric switches. They are located
in an optimal position to allow the operator to easily activate secondary functions without any
interruption of the joystick position. On the top part of the handgrip is a transparent cover where a
graphic containing the machine movements or other instructions can be integrated.
An easy to reach locking lever is integrated on the back of the base plate to secure the joystick
from unwanted movements when the machine is transported. Changing the plate is eased by pre-
mounted switches and electric cable.
The WK300 and WK350 series can be used together with all of Nimco Control’s valves having 3
position spools as well as 4th position spools such as float or regenerative functions.
Other key features of the WK300 and WK350 are:
• A specially enforced hand lever and handgrip where the steel rod goes all the way up through the hand lever
• The pivot joint made of stainless steel to withstand excessive operative abuse
• Square instead of rectangular base box which allows for both float and regen installation simultaneously
• A plastic cover on top of the handgrip allowing for the integration of a logo or machine movement description in clear
operator view
• A full length rubber booth covering the entire hand lever from the base box to the hand lever made of self extinguishing
and weather resistent plastic polymer
• A secure and easy to reach locking mechanism with clearly indicated warning signs
• Electric push buttons rated at 3M cycles and 12V, 6A for direct connection to any of Nimco’s circuit selector valves.
• The push buttons are at high quality and will withstand rough environment
• Recommended for use in combination with Nimco’s long life 4K cable series