Bettis P/N 126858
Revision "F"
Page 8 of 15
SECTION 4 - M11 DISASSEMBLY INSTRUCTIONS
4.1
M11 PRESSURE RELEASE INSTRUCTIONS
NOTE: Shut off and exhaust the operating media from both sides of the actuator’s power cylinder.
4.1.1
Place the M11 control knob (20-320) in the Auto position (middle position). NOTE: Control
knob (20-320) is located in front and at the bottom of the M11 pump manifold (20-10).
NOTE: Using a means of capturing the hydraulic fluid that will be lost during the following steps.
Use a bucket, tub, and large container, etc.
4.1.2
Remove the 1/8” pipe plug (10-100) from the reservoir bottom end cap (10-60).
4.1.3
Place the M11 control knob (20-320) in the Manual position.
4.1.4
Remove all the M11 pump assembly piping; SS Tubing (50) with male connector (40).
NOTE: When removing the pump hose/tube fitting there will be a loss of fluid pressure. G & T
Series actuators there is 250 psi pressure and HD Series actuator there is 33 psi pressure.
4.2
M11 RESERVOIR DISASSEMBLY INSTRUCTIONS
NOTE: Review Section 4.1 M11 Pressure Relief Instructions before proceeding with reservoir
disassembly.
4.2.1
Remove piping from port located in upper end cap (10-10).
4.2.2
Loosen socket cap screws (30-20) and remove the M11 reservoir from the M11 mounting
bracket (30-90).
4.2.3
Remove breather (10-140) from upper end cap (10-10).
4.2.4
Remove acorn nut (10-70) from upper end cap (10-10).
4.2.5
Remove center bar assembly (10-30) from the upper end of the reservoir upper end cap
(10-10).
4.2.6
Remove bottom end cap (10-60) from M11 cylinder (10-20) and center bar assembly
(10-30).
4.2.7
Remove M11 cylinder (10-20) from upper end cap (10-10).
4.2.8
If required for replacement or maintenance remove low pressure relief valve (10-130) from
elbow (10-90).
