Troubleshooting 149
Troubleshooting Guide
This troubleshooting guide will help identify the most commonly seen problems on the MINIMAX™. It
will also provide the possible cause of the problem and give solutions to resolve it.
For further information regarding customized options that might not be found in this
troubleshooting guide, contact LabriePlus.
Problem Possible causes Solution
Insufficient packing ratio Low oil pressure See Hydraulic Pressures on page 107.
Packer hydraulic cylinder
internally bypassing
See Detecting Cylinder Internal Leaks
on page 122.
Defective pump Replace the pump.
Overheating hydraulic oil
(temperature above 77°C
[180°F])
Low oil level in the hydraulic
tank
Add oil to the required level. See
Inspecting Hydraulic Oil on page 86.
Hydraulic pressure too low or
too high
See Hydraulic Pressures on page 107.
Not the proper grade of oil
(that is too thin in hot
temperatures or too thick in
cold temperatures)
Change for oil indicated in
Recommended Lubricants on page 69
(also see Emptying the Hydraulic
Tank on page 115).
Contaminated oil Clean the strainer and change the
return filter element. Fill with clean
oil. See Cleaning the Strainer on
page 117, Replacing Filter Elements
on page 120, and Inspecting
Hydraulic Cylinders on page 121.
Restriction in the hydraulic
system
Check all hydraulic components for
debris that could cause restriction in
the system. Have the pump
inspected by a specialist.
Foaming oil Low oil level Add oil to the required level. See
Inspecting Hydraulic Oil on page 86
(also see Inspecting Hydraulic
Cylinders on page 121).
Air entering the system Tighten all hose and pipe
connections between the pump and
the hydraulic tank.
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