Section 4 - Spare Parts Replacement And Routine Maintenance; Depressurizing The Discharge Line (For Pumps Equipped Witha 4-Fv Only); Depressurizing The Discharge Line (For Single Ball Fastprime™ Heads Only) - LMI ROYTRONIC EXCEL AD Series Instruction Manual

SECTION 4 - MAINTENANCE
4.0 SPARE PARTS REPLACEMENT AND
ROUTINE MAINTENANCE
LMI metering pumps are designed for trouble-free
®
operation, yet routine maintenance of elastomeric
parts is essential for optimum performance.
This involves replacing the LIQUIFRAM™,
cartridge valves, O-rings, and the injection check
valve spring. LMI recommends replacing these
®
parts at least once a year; however, frequency will
depend on your particular application.
4.1 DEPRESSURIZING THE DISCHARGE
LINE (FOR PUMPS EQUIPPED WITH
A 4-FV ONLY)
SAFETY GLASSES AND GLOVES WHEN PERFORMING ANY
MAINTENANCE OR REPLACEMENT ON YOUR PUMP.
DISASSEMBLY OR MAINTENANCE, ALL INSTALLATIONS
SHOULD BE EQUIPPED WITH LINE DEPRESSURIZATION
CAPABILITY. USING LMI 'S FOUR-FUNCTION VALVE (4-FV) IS
®
ONE WAY TO INCLUDE THIS FEATURE.
1. Be sure the Injection Check Valve is properly
installed and is operating. If a shut off valve
has been installed downstream of the Injection
Valve, it should be closed.
AND RUNS BACK TO YOUR SOLUTION DRUM OR TANK.
2. Turn the black knob on the 4-FV 1/8 turn
to the stop. Turn and hold the yellow knob
for a few seconds. The discharge line is
now depressurized. Keep both valve knobs
open until solution drains back down the
discharge tubing into the solution tank or drum.
Then release the yellow knob, and turn the black
knob to its normal position.
21
ALWAYS WEAR PROTECTIVE
CLOTHING, FACE SHIELD,
TO REDUCE THE RISK OF
CHEMICAL SPLASH DURING
READ STEPS 1 AND 2 BELOW
BEFORE PROCEEDING.
BE SURE YOUR RELIEF TUBING
IS CONNECTED TO YOUR 4-FV
Instruction Manual
4.2 DEPRESSURIZING THE
DISCHARGE LINE (FOR DOUBLE
BALL FASTPRIME™ HEADS ONLY)
SAFETY GLASSES AND GLOVES WHEN PERFORMING ANY
MAINTENANCE OR REPLACEMENT ON YOUR PUMP.
1. Be sure the Injection Check Valve is properly
installed and is operating. If a shut off valve
has been installed downstream of the Injection
Valve, it should be closed.
FASTPRIME™ VALVE AND RUNS BACK TO YOUR SOLUTION
DRUM OR TANK.
2. Turn the FASTPRIME™ knob one-and-a-half
turns counter-clockwise. The discharge line
is now depressurized. Keep valve open until
solution drains back down the discharge tubing
into solution drum or tank. Then turn the knob
clockwise to tighten knob to closed position.
ALWAYS WEAR PROTECTIVE
CLOTHING, FACE SHIELD,
READ STEPS 1 AND 2 BELOW
BEFORE PROCEEDING.
BE SURE YOUR RELIEF TUBING
IS CONNECTED TO YOUR