TM 9-2320-260-34-1
8-2. TWIN POPPET VALVE REPLACEMENT
THIS TASK COVERS:
a. Removal
b. Installation
lNITIAL SETUP
REFERENCES (TM)
APPLICABLE MODELS
All
TM 9-2320-260-20
TM 9-2320-260-34 P-1
TOOLS
EQUIPMENT CONDITION
General mechanic's tool kit
(Appendix B, Item 1)
Cab tunnel removed (TM 9-2320-260-20).
MATERIALS/PARTS
GENERAL SAFETY INSTRUCTIONS
Two O-rings (Appendix D, Item 296)
Do not disconnect air lines before draining air
Four lockwashers (Appendix D, Item 235)
reservoirs.
Two gaskets (Appendix D, Item 129)
Antiseize tape (Appendix C, Item 50)
WARNING
Do not disconnect air lines before draining air reservoirs. Small
parts under pressure may shoot out with high velocity, causing
injury to personnel.
1. Remove three air lines (1) from elbows (2).
2. Remove three elbows (2) from twin poppet valve (3).
3. Remove four screws (5), lockwashers (4), twin poppet valve (3), two gaskets (6), and O-rings (7) from
transmission (8). Discard lockwashers (4), O-rings (7), and gaskets (6).
NOTE
Wrap male pipe threads with antiseize tape before installation.
1. Install three elbows (2) on twin poppet valve (3).
2. Install two new O-rings (7), new gaskets (6), and twin poppet valve (3) on transmission (8) with four
new lockwashers (4) and screws (5).
3. Install three air lines (1) on elbows (2).
