TM 9-2320-366-34-1
2-1076
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
2.
Is check valve operating?
NO
YES
Input Check Valve Test
Clean or replace input check valve.
Faulty input check valve.
Faulty main relief valve.
Faulty two way soleniod
valve.
A dirty check valve will
allow hydraulic flow in
both directions.
Hydraulic oil level OK.
PTO OK.
Hydraulic hoses, tubes,
and fittings OK.
Hydraulic rotary pump OK.
Faulty manual override
valve.
l1. M1084/M1086 MATERIAL HANDLING CRANE (MHC) HYDRAULIC FUNCTIONS OPERATE SLOWLY
(CONT)