TM 9-2320-260-20
I
THIS TASK COVERS:
a. Removal
b. Installation
INITIAL SETUP
APPLICABLE MODELS
EQUIPMENT CONDITION
M816, M819
q Parking brake set (TM 9-2320-260-10).
q Shipper brake placed in travel position
MATERIALS/PARTS
(TM 9-2320-260-10).
Cap and plug set (Appendix C, Item 9)
Drain hydraulic system (LO 9-2320-260-12).
REFERENCES (TM)
LO 9-2320-260-12
TM 9-2320-260-10
TM 9-2320-260-20P
NOTE
There are three types of hydraulic hose and tube connections
found on the M816 and M819 wreckers. This procedure covers the
solid female and swivel male connection.
CAUTION
Clean area around hoses and lines before removal to prevent
q
entry of dirt. Damage will occur if dirt or dust enters system.
q Cap or plug all openings after disconnecting tubes and hoses to
prevent contamination. Remove caps or plugs prior to
installation. Failure to do so may result in hydraulic pump
damage.
q Do not twist hose during removal. Damage to hose may occur,
NOTE
q Tag all hoses and tubes for installation.
Use more than one wrench for removal and installation of hoses
q
and tubes.
Hose and fittings connected by a single hexagonal nut cannot be
q
disconnected until the swivel nut connection at the opposite end
is removed. The entire hose must be free to turn when removing
this type of hose connection.
Have drainage container ready to catch oil.
q
1. Separate hoses (1) and (2) from tubes (7) and (8).
2. Remove hose (2) from checkvalve (4).
3. Remove hose (1) from elbow (3).
4. Remove bypass hose (6) from elbow (5).
5. Remove bypass hose (6) from elbow (9).
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