OPERATING
BETTCHER
AIRSHIRZ
®
INSTRUCTIONS
INDUSTRIES, INC. Rev. September 24, 2016
Page 72
9.4.14
Power Cylinder Installation – All Models
Disconnect the air line.
Examine clevis bearings. If pins fit with more than .007 inch (.18mm) side play, bearings and pins
should be replaced. Use a tool as described in Figure #66 below, to press out old bearings and
install new bearings. Note orientation of bearing for installation. The chamfered end should press
in first.
FIGURE #66
Install the rubber sealing washer (provided with the swivel fitting) over the threads. Apply a
small amount of thread sealant, such as Loctite #567 thread sealant, to the threads. Install the
rear air fitting into the clevis end of the power cylinder. To start threads, hold the fitting with
tubing in one hand; grasp the power cylinder assembly in the other hand and rotate it
clockwise against the fitting until the tubing hits against the clevis. Use a 5/16 inch open-end
wrench to tighten the fitting until it is firmly seated.
Take Care Not To Over Tighten
.
Slide the rear mount of the power cylinder into the frame clevis with the rear fitting facing the
tubing notch in the frame. Check that the front fitting is on the same side as is the front
tubing. (If not, remove the four flat head screws and rotate the base then reinstall the screws).
Insert a clevis pin into the threaded end of the frame clevis. Wiggle the power cylinder as
needed while pushing the pin in until the threads are visible. Install the retaining screw and
tighten firmly. (The screw is self-locking, so it should turn with some resistance. If not, it
should be replaced).
Place a clevis pin in the rod end and rotate the rod until the axis of the pin is in line with the
clevis on the drive link. Push the rod to approximately mid stroke.
Remove the pin, position the clevis over the rod hole and reinsert the pin from the threaded
side. If the pin doesn't go down fully, slide the rod slightly in and out of the power cylinder
while pushing on the rod.
Do Not Attempt To Pound The Pin In As This May Damage
The Bearing
. When the threads become visible, install the retaining screw and tighten firmly.
Position the front tube over the air fitting and push on fully.
Tool is included in
Maintenance Tool Kit
.186 dia. (max.)
(4.72mm)
¼
(6mm)
.125 dia.
(3.17mm)
Chamfered end
Bearing
