Pentair Fairbanks Nijhuis 1590F Instruction And Repair Manual

MODEL 1590F

VERTICAL INLINE FIRE PUMP

INSTRUCTION AND REPAIR MANUAL

NOTE! To the installer: Please make sure you provide this manual to the owner of the equip ment or to the responsible
party who maintains the system.

Part #FMF-03-329 | © 2012 Pentair Ltd. | 12/26/12

2

ATTENTION: SAFETY WARNINGS:

Read and understand all warnings before installation or
servicing pump.

CALIFORNIA PROPOSITION 65 WARNING:

Warning:

This product and related accessories contain chemicals
known to the State of California to cause cancer, birth
defects or other reproductive harm.

OPERATIONAL LIMITS: *

Maximum Operating Pressure: 175 psi at T e m p e r a t u r e s
to 150
Maximum Operating Temperature: 225°F (107°C)

* See ASTM A126/ANSI B16.1 for pressure/temperature
ratings of flanges.

ELECTRICAL SAFETY:

O

F (65.6°C)

Warning: Electrical Shock Hazard

All electrical connections are to be made by a qualified
electrician in accordance with all codes and ordinances.
Failure to follow these instructions could result in serious
personal injury, death or property damage.

SERVICE:

Your Fairbanks Nijhuis pump requires little maintenance other
than periodic inspection, occasional cleaning, lubrication of
bearings and gland adjustments to minimize packing leakage.
The intent of inspection is to prevent breakdown, thus
obtaining optimum service life. The liquid end of the pump
is lubricated by the fluid being pumped and therefore does
not require periodic lubrication. The motor, however, may
require lubrication, in which case, the motor manufacturer’s
recommendation should be followed.

REPAIRS:

Before starting any work, ensure the electrical power is
locked out, the system pressure has been lowered to 0 psi and
temperature of the unit is at a safe level.

The pump may be disassembled using the illustrations and text
provided. Although complete disassembly is covered, it will
seldom be necessary to completely disassemble your Fairbanks
Nijhuis pump.

Inspect removed parts at disassembly to determine if they can
be reused. Ball bearings that turn roughly or show wear should
be replaced. Cracked casings should never be reused. Scored
or worn pump shafts should be replaced. Gaskets should be
replaced at reassembly simply as a matter of economy. They
are much less expensive to replace routinely than to replace
as the need arises. In general it is economical to return to the
manufacturer for repair of only the motor and motor controller.

DISASSEMBLY:

Warning: Electrical Overload Hazard

Insure all motors have properly sized overload protection.
Failure to follow these instructions could result in serious
personal injury, death or property damage.

Warning: Sudden Start-Up Hazard

Disconnect and lockout power source before servicing.
Failure to follow these instructions could result in serious
personal injury, death or property damage.

HIGH PRESSURE SAFETY:

Warning: High Pressure Hazard

The pump is rated at a maximum of 175 psi at 150°F. Do
not exceed this pressure. Install properly sized pressure
relief valves in system. Failure to follow these instruc­tions could result in serious personal injury, death or prop­erty damage.

Disassemble only what is needed to make repairs or to
accomplish inspection. Proceed to disassemble the pump as
follows:

1. Break electrical connections to prevent any possibility of
pump starting during disassembly.

2. Remove plug (74) from casing (6) to drain pump.

3. Remove all relief, cooling, flushing, or drain lines from
the pump including compression connections (1 & 2),
ball valve (75) and tubing (3) if provided. Break suction
and discharge connections only if it is desired to remove
casing (6).

4. Remove capscrews (5) and two opposite capscrews (41).
Thread two capscrews (5) into taps that held capscrews (41)
and turn alternately until cover (26) separates from casing. This
procedure may vary slightly for some pump sizes. Lift pump
assembly with motor from casing (6). Remove gasket (8).

Warning: Lifting Hazard

The motor and pump assembly may be very heavy. Use
extreme caution and safe lifting equipment during the lifting
procedure. Failure to follow these instructions could result
in serious personal injury, death or property damage.

Fairbanks Nijhuis™ 12/26/12