This ergonomically designed, tri-grip handknob incorporates dual functionality in one package. It can be used to achieve full range control (five turns) or can be used to limit the maximum allowable setting.

• For use on Series 1, 2, 3, and 4 Sun Cartridges with an L or O adjustment control (except for counterbalance and RD** relief valves).

• The installation of this kit is intended to be permanent. Once assembled to the cartridge, it cannot be easily readjusted or disassembled.
• When used for full range control, the handknob installs easily over the existing L control with no disassembly required. Note: When used as a Maximum Setting Limiter, some disassembly is required. See installation instructions in the Notes tab.
• Provides a robust and rigid attachment between the handknob and the adjust screw.
• Handknob is constructed of an engineered plastic with a threaded metal insert. Lock knob is also constructed of an engineered plastic.

Notes:

• 1a - When used for full range control, install Lock Knob by snapping onto existing Lock Nut (do not remove stop ring).
• 2a - Install Handknob sub-assembly until contact is made with the snap ring (on flow controls which have no stop ring, ensure valve can be shut using handknob). Proceed to Step 4.
• 1b - When used as a maximum setting limiter, set valve at maximum setting and tighten locknut (80-90 lbf in.).
• 2b - Install Lock Knob by snapping on to the locknut.
• 3b - Install Handknob sub-assembly until it bottoms out on LockKnob.
• 4 - Insert Pins through Cap and install Cap onto Handknob. Drive pins in until flush with top of Cap.