TM 5-2330-325-14&P
This task covers:
a. Removal
b. Clean
c. Installation
Initial Setup:
Equipment Conditions:
Materials/Parts:
Trailer parked on level ground, brakes
Marker tag (item 20, Appendix F)
engaged and wheels chocked.
Tape, anti-seizing (item 21, Appendix F)
Gooseneck Gravel Guard removed.
WD-40 (item 7, Appendix F)
O-ring (PN 568906)
Tools/Test Equipment
General Safety Instructions:
Tool set, general mechanics,
Gooseneck must be securely supported during
NSN 5180-00-177-7033
procedure or attached to trailer.
WARNING
Gooseneck must be securely supported during this procedure and resting
on a firm foundation. Severe injury or death to personnel may occur if
gooseneck is unstable or tips.
High pressure hydraulics [oil under 2450 psi (16,893 kPa)] used to operate
this equipment can pierce body tissue and cause severe injury to personnel.
Never disconnect any hydraulic line or fitting without first dropping
pressure to zero.
Wear safety goggles when performing leakage tests on valves. Failure to
do so may result in serious eye injury due to high pressure oil.
a.
Removal.
(1)
Release all pressure from hydraulic lines.
(2)
Disconnect hydraulic line (2) from hydraulic throttle valve (1).
(3)
Disconnect throttle valve (1) and from hydraulic lift cylinder fitting (4) and remove O-ring
(3). Discard O-ring.
CAUTION
Failure to cap or plug all open fitting and hose ends to prevent contamination
of hydraulic system may result in damage to equipment.
(4)
Cap or plug open lift cylinder fitting (4) and open hydraulic line end (2).
