Hydraulic Installation - NPK PH1 Operator's Manual

HYDRAULIC INSTALLATION

NPK can produce INSTALLATION KITS for virtually all compatible backhoe loaders,
excavators, and skid steers.
installation of the NPK HYDRAULIC HAMMER including valves and/or controls, hoses
and fittings, boom and stick tubing, and clamps are provided.
HAMMER LINES (BACKHOE and
EXCAVATOR)
Typically, the pressure line is arranged on the left side of the
boom and routed to the hammer "IN" port (6) and the return line
is routed from the hammer "OUT" port (5) on the right side. Flow to the hammer is
controlled from an auxiliary valve on the carrier or from an NPK supplied valve.
Hydraulic oil, generally, is routed back to the tank thru the carrier's oil cooler and filter.
HAMMER LINES (SKID STEER)
Flow to the hammer (m3) is directed from an
auxiliary valve on the skid steer. NPK hammer
ports are marked "IN" and "OUT".
steers where the auxiliary flow is excessive for
the hammer model, a flow control valve (ma3) is
recommended. Return oil (m4) is routed back to
tank through the skid steer return circuit.
HAMMER CONTROL VALVE
NPK uses two general types of control systems,
depending upon the carrier model:
1. CONTROL SYSTEM USING THE CARRIER AUXILIARY OR SPARE VALVE
SECTION.
This type of installation utilizes an existing carrier valve. Any additional parts, such
as a mechanical linkage, hydraulic pilot actuators, flow control valves, etc., are
furnished in the NPK HYDRAULIC INSTALLATION KIT. Special hydraulic pressure
control valves are not required.
pressure is self-regulating.
2. CONTROL SYSTEM USING THE NPK MULTIVALVE.
For carriers not equipped with a suitable auxiliary or spare valve section, the NPK
HYDRAULIC INSTALLATION KIT includes a solenoid operated, priority flow control
valve to operate the NPK HYDRAULIC HAMMER.
specifically designed for the operation of boom mounted attachments.
Complete parts and instructions for the hydraulic
On skid
The NPK HYDRAULIC HAMMER operating
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The NPK MULTIVALVE is