D60x90 Navigator HDD Maintenance
10 Service Hours or Daily 20-7
Dust Discharge Valve - Empty
Empty dust discharge valve
(1)
by pressing apart lips of discharge slot.
Remove any caked dirt by pressing together the upper section of the valve.
A
CCUMULATOR
P
RESSURE
- C
HECK
Check accumulator pre-charge pressure on gauge
(1)
before
starting the machine
each day. Machine must be shut down a sufficient length of time to allow hydraulic
oil to cool to ambient temperature and residual pressures in the hydrostatic closed
loops to bleed down to atmospheric pressure.
Pre-charge pressure should be 230–250 psi (16–17 bar). If pressure is too low, contact
your Vermeer service dealer.
Operation of accumulator without sufficient pre-charge can cause bladder failure.
WARNING:
Accumulator is under pressure. Do not attempt to disassemble
or service accumulator. If accumulator requires service, contact your
Vermeer dealer.
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