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OPERATING
BETTCHER
AIRSHIRZ
®
INSTRUCTIONS
INDUSTRIES, INC. Rev. September 24, 2016
Page 74
9.4.16
Control Valve Installation (See Figure #67)
Disconnect the air line.
Examine the (5) O-rings on the valve body for nicks, cuts, or cracks. Replace any damaged O-
rings. Apply Bettcher
®
Max-Z-Lube to new O-rings and install them with a rolling action to get
them over the grooves. Be careful not to cut them on the groove edges.
Apply a thin film of Bettcher
®
Max-Z-Lube to each of the (5) O-rings on the control valve body.
Push the control valve body into the frame at the rear until the rear threads engage the bore.
Place the locking nut over the control valve rod with the collar end facing the valve.
Use a 1/2 inch open-end wrench to rotate the control valve clockwise while pushing it inward from
the rear to engage the rear threads.
Screw the control valve inward until it is in approximately the same position it was prior to
removal or until the end of the valve body is 1/8 inch (3mm) from the frame.
Screw locking nut onto front control valve threads, but leave it about 3 turns loose.
Rotate the control valve rod until the axis of the cross-pin is in line with the master link.
Connect master link (see Section 9.4.8).
Perform smoothness adjustment (see Section 9.2.2) then stroke adjustment (see Section 9.2.3).