TM 5-3805-280-24-2
Hydraulic System
CAUTION: To avoid injury from escaping fluid
under pressure, never loosen screw more than
two turns as screw may come out. Tighten
screw and nut before applying pressure.
2. Loosen the small nut (B) on the boom reduced leakage
valve housing (C).
Slowly loosen boom manual lower screw (A) 1/2 turn
using a 4 mm hex key wrench. The boom will start to
lower.
The boom lowering speed can be increased somewhat
by loosening screw an additional 1-1/2 turns. Never
loosen screw more than two turns.
3. After the bucket is lowered to the ground, tighten the
screw to specification, and then the nut.
Boom Manual Lower Screw--Specification
Torque ........................................................................... 6.9 Nm (60 lb-in.)
Boom Manual Lower Screw-to-Housing Nut--Specification
Torque .......................................................................... 13 Nm (115 lb-in.)
Boom Manual Lower Screw
A--Boom Manual Lower Screw
B--Small Nut
C--Boom Reduced Leakage Valve Housing
33
3360
19
CED,OUOE003,1198
1921SEP982/2
21-61
