Mittler Bros Machine & Tool 2500 - Manual (Page 7)

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HYDRAULIC SYSTEM
1. Remove the
RED Plug in the pump assembly and
replace with the supplied BLACK plug. This is
the reservoir venting system and damage or
inoperability may result if not changed out.
2. Attach the hydraulic hose to the pump. Attach an air line
fitting for your shop air to other end of the pump. Be sure
to use a quality thread sealer on both connections
3. Push the pump foot pedal to the release position (TOE END)
to relieve all internal pressure. Push the MALE hose end,
from the pump, into the FEMALE Cylinder fitting & then
thread the retainer collar hand tight. This procedure will insure
that the male & female fittings positively seat against each
other, eliminating any possibility of air locking. Failing to
follow this procedure may cause the cylinder to not retract
and / or leak.
4. BLEED THE CYLINDER; Connect a compressed air supply
(90PSI) to the pump. Elevate the pump and hose above the
cylinder. Push the hydraulic pump pedal HEEL END to actuate
the cylinder. Run the cylinder out about half way. Release the
pump by pressing on the TOE END of the pedal. Repeat this
process three or four times or until the ram cylinder movement is
smooth.
RED Plug should
be changed to
BLACK Plug
Pump Assembly
Hydraulic Hose
Air Hose
TOE END
Retract
HEEL END
Pump
Push Down to
Release Pressure