19
enough for the pump and motor to reach operating
temperature.
2. Check alignment while unit is still hot.
3. Make any necessary adjustments and reinstall the
coupling guards.
STUFFING BOX
Packed Box
Braided packing is supplied as standard equipment on
all pumps. Install gland bolt nuts finger-tight only. Adjust
the gland bolt nuts during start-up to achieve 40-65 drops
of leakage per minute. Specific packing type is depend-
ent on pH, temperature, etc. of the liquid being pumped.
Clean and cool pumpage may be used to lubricate the
packing. If the pumpage is not suitable, you must supply
an external source of lubrication.
CARTRIDGE MECHANICAL SEAL
Refer to the manufacture’s installation, operating, and
maintenance instructions. Failure to do so can result in
environmental damage, personal injury, and seal
malfunction and / or seal failure.
Start Up
Read, understand and follow the manufacture’s installa-
tion, operation, and maintenance instructions.
Never operate a pump without the coupling guard
properly installed. Personal injury can occur if pump
is run without coupling guard.
! WARNING !
Determine the effects that a failure of the mechanical
seal might have on the environment and personnel
and correct conditions to prevent personal injury.
! WARNING !
Do not allow packing to run dry. It must be lubricated.
See ANSI/ASME B73.1 M-1984 for proper seal flush
plans.
CAUTION
DO NOT operate pump below minimum rated flows or
with suction or discharge valves closed. These
conditions could create an explosive hazard due to
vaporization or pumpage & can quickly lead to pump
failure and physical injury.
! WARNING !
INITIAL STARTING
1. The gate valve in the discharge line should be closed &
gradually opened as the motor reaches full speed
(approximately 5 to 10 seconds). After the pump has been
in operation & the suction & discharge lines are filled with
liquid, it is not necessary to close the gate valve when
starting.
2. Start motor & immediately observe pressure gauges. If
discharge pressure is not quickly attained stop pump,
reprime, & attempt to restart.
3. If your pump is packed, loosen packing gland screws to
allow free leakage. Then tighten screws uniformly on
packing gland until leakage is reduced to approximately
30 drops per minute. Never tighten packing enough to
stop all leakage, a slight leakage is required to lubricate
packing and prevent scoring of shaft sleeve.
4. Check pump for vibration levels, bearing temperature,
& excessive noise. If normal levels are exceeded, shut
down & investigate.
OPERATION
Always vary the capacity with gate valve in the discharge
line. Never restrict intake flow.
If the specific gravity of liquid being pumped is greater
than originally assumed or if the rated flow is exceeded,
the motor may overload.
To prevent damage from cavitation or recirculation,
always operate pump at or near the rated conditions.
Drain all liquid from inside pump if it will be exposed to
freezing conditions while idle. The conditions could
cause liquid to freeze and damage the pump. Liquid
inside cooling coils, if supplied, should also be drained.
FINAL ALIGNMENT
1. Run the unit under actual operating conditions long
Pump Model
XLR
LTR
MTR
STR
5/16”
3/8”
3/8”
7/16”
Packing Size
Only work on seal when the pump is locked out and
the seal is depressurized.
! WARNING !
