TM 9--2350--292--20--1
0105 00--2
SPADE LOCK FAILS TO RELEASE -- CONTINUED
0105 00
C
1. Install 0--4000 psi testing gauge assembly with
1/4--inch tee between spade lock hose and
quick--disconnect.
2. Start main engine, energize hydraulics system
and set engine speed to 1800 rpm
(TM 9--2350--292--10).
3. Place spade control lever in raise position and
press isolator valve button. Record gauge
reading.
4. Shut down hydraulics and main engine.
Does pressure gauge read 2000--2300 psi?
CONTINUED FROM STEP B
no
yes
Go to Step E.
CONTINUED ON NEXT PAGE
D
Are plunger, collar, and hardware free of restrictions,
damage, and missing parts.
Inspect the spade release plunger, collar, and hard-
ware for restrictions, damage, or missing parts.
yes
no
Remove restrictions. If
restrictions cannot be
removed or if parts are
damaged or missing,
replace (WP 0521 00).
Verify fault is corrected.
Replace spade lock
cylinder (WP 0521 00).
Verify fault is corrected.
Are hoses free of leaks, restrictions, and damage?
Inspect both hoses from spade lock quick--discon-
nect to isolator valve to check valve to spade direc-
tional control valve on hydraulic control valve man-
ifold assembly for leaks, restrictions, and damage.
E
CONTINUED FROM STEP C AND I
FORWARD
WARNING
CONTINUED FROM
STEP I
