Jacobsen HR5111 Service And Repair Instructions page 211

PROBLEM
1. Lift/lower functions do
not occur when lever is
actuated.
2. Slow or noisy lift/lower
operation.
SECTION 9B. FAILURE ANALYSIS
PROBABLE CAUSE
a. Engine rpm not above 2000.
b. Lever linkage is worn.
c. Mechanical binding.
d. Hydraulics faulty.
a. Mechanical binding.
b. Hydraulics faulty.
9B-1
CHASSIS
REMEDY
a. Increase engine rpm.
b. Repair or replace linkage
(Section 2C).
c. Lubricate/repair.
d. Test (Section 8B).
a. Lubricate/repair.
b. Test (Section 8B).
9B