Enerpac AHP-40 Manual Del Usuario página 4

VM or VS series valve will mount to this manifold. There are two
pipe plugs which must abe removed from the pressure and
tank ports on the top of the manifold before mounting the
Enerpac valve to the manifold. Failure to do can result in
damage to system.
Secondly, the manifold can be used as supplied to power remote valve
stacks. By leaving the two pipe plugs in the top of the manifold and
utilizing the ports labeled "P" and "T" coming out the side of the
manifold, this pump now can power multiple valves banks and
systems. This is useful if a significant number of valves are required or
if the pump is to be mounted in an area that is not readily accessible.
4.2 Air Connection
The pump is equipped with an air regulator. The air regulator and
air pressure gauge are shipped with the pump in a plastic bag.
Install air regulator on to 1/4-NPT 90° elbow on pump (see Figure
1, 2 or 3). Install regulator with adjustment knob pointing down;
arrows on top of regulator must be pointing toward air pump. Attach
air supply opposite to port where regulator attaches to pump. Air
pressure gauge may be attached to either of the two remaining
ports; the last remaining port is to be plugged with pipe plug
provided with regulator. All NPT connections are to be taped with
Teflon tape. Turn air regulator control knob (located on bottom of
regulator) all of the way counterclockwise (with pump in upright
position) to lowest setting before attaching air supply. Doing this will
prevent possible over pressurization of hydraulic system.
4.3 Priming Pump
After connecting oil circuitry and air supply it is necessary to prime
the pumping unit. This is done by loosening the first hydraulic fitting
out of pressure port. Allow the pump to operate at 20psi of air input
pressure until oil begins to flow from the loosened fitting and then
tighten this fitting.
4.4 Pump Mounting
Pump is to be operated in upright position only. Bottom of reservoir
has holes for self-tapping screws that allow for rigid mounting of
pump (screws included with pump).
5.0 OPERATION
5.1 Oil Level
The pump is shipped with no oil in reservoir, but oil is shipped
separately with pump. To add oil remove Filler/breather cap and
add oil to pump until sight gauge on side of reservoir indicates oil
Problem
Pump will not start or runs
slowly
Air escaping from muffler or
breather
Excessive oil leakage from
muffler/breather
Pump cycles but generates
no oil flow
Generates low pressure
Possible Cause
1. Air turned off or line blocked
2. Low air pressure
3. Formation of ice on exhaust side
4. Blockage in muffler or breather
1. Worn air valve or air piston seal
1. Worn hydraulic seal
1. Blocked suction line
2. Bad connection on suction line
3. Check to see if valves are blocked
or worn
1. Internal leakage in downstream circuit
2. Suction valve seats damaged and leaking
3. Ouput valve seats damaged and leaking
4. Worn oil seal
level is at least above "add" mark on sight. Reservoir may be filled
to the top of sight gauge. Replace breather cap (hand tighten).
5.2 Hydraulic System Pressure
The desired maximum system pressure is set by adjusting the
input air pressure via the air regulator (air gauge is incorporated
into regulator). The air pressure required for a given hydraulic
system pressure can be referenced in the graphs of Chart 1 and
Chart 2. Pump comes with no hydraulic pressure gauge and this
must be added to the hydraulic circuit.
6.0 MAINTENANCE
6.1 Maintenance Oil/Oil Level
Oil must be changed after every 1,500 hours of operation and
sooner if the oil's not properly filtered and becomes contaminated.
Properly dispose of used oil and refill according to instructions in
installation section of this document. If there are any contaminants
or sludge in bottom of reservoir, remove coverplate and clean
bottom of reservoir. Refill pump with Enerpac Hydraulic Oil.
Check oil level of pump prior to each start-up of pump. If pump is
used over long periods of time, check periodically during
operation. Sight gauge on side of reservoir indicates oil level of
unit and if the sight gauge indicates the pump low on oil; add
Enerpac Hydraulic Oil.
6.2 Hydraulic Leaks
Check components of hydraulic system for any hydraulic leaks.
Leaks are usually the result of loose fittings/couplers or
damaged/worn out seals. Repair leaks as soon as they are
discovered. Leaks can result in contaminants entering the system
and will result in hydraulic fluid loss. After repairing any leaks,
check oil level. If below "add" mark, add Enerpac Hydraulic Oil.
Note: Repairs can only be made when all pneumatic and hydraulic
pressure is released.
6.3 Maintenance of Pneumatics
Periodically release condensation from air filter drain. Clean
mufflers and breather on pump every 250 hours of operation.
7.0 TROUBLE SHOOTING (SEE TROUBLESHOOTING
GUIDE)
1. Turn on air; remove blockage
2. Turn air pressure above 20 psi
3. Shut off pump for a short period of time and drain off
water from filter drain
4. Remove muffler/breather and clean or replace
1. Replace valve or seal
1. Replace seal
1. Clean filter screen
2. Check for bad connections on suction or air leaks on
suction line
3. Clean or replace valves
1. Locate leak; repair leak
2. Replace suction valve parts
3. Replace output valve parts
4. Replace seal
4
Solution