MTS Landmark Floor Standing - Manual (Page 101)

Series 111 Accumulator: Check and Change
Precharge Pressure
This section covers checking and changing the precharge pressure for the 111 accumulator.
Equipment
An accumulator charging kit (MTS part number 376986-01).
Prerequisites
To prepare the accumulator for precharge check:
Warning:
Accumulators are pressurized devices.
Pressurized accumulators and their parts can become lethal projectiles if disassembled and can
cause death to persons and/or damage to equipment.
Do not remove an accumulator that is pressurized. Completely remove hydraulic pressure and
discharge the accumulator before any parts, except the protective cover and valve stem cap, are
removed.
1. Ensure that system hydraulic pressure has been reduced to zero before proceeding. To do this, turn off
the hydraulic power unit and exercise the actuator until it stops moving.
2. Close the bleed valve on the accumulator charging kit. Remove the protective cover and valve stem cap
from the accumulator.
Check the Precharge Pressure
1. Connect the charging kit chuck valve to the accumulator valve stem.
MTS Landmark™ Floor Standing Load Units Product Information 101
Maintenance