Lull 1044C-54 Series II Service Manual - Manual (Page 114)

Supply, Pressure, and Return Hydraulics
5-32 31200079
C. Disconnected or broken pump
drive
Inspect and repair or replace.
4. Loss of fluid A. Ruptured hydraulic lines
B. Loose fittings
C. Leaking gaskets or seals in
pump or circuit
1. Check all external connections, tubing, and
hoses. Tighten connections and replace any
ruptured tubes or hoses.
2. Observe mating sections of pump for leaks.
3. Replace seals or gaskets if possible.
Problem Probable Cause Solution