A-100N
A-100N
6.0
How to Maintain the A-100N
6.1
Routine Inspection and Maintenance
The A-100N requires very little maintenance. However, the pump and all accessories should be checked
weekly. This is especially important when pumping chemicals. Inspect all components for signs of
leaking, swelling, cracking, discoloration or corrosion. Replace worn or damaged components immedi-
ately.
Cracking, crazing, discoloration and the like during the first week of operation are signs of severe
chemical attack. If this occurs, immediately remove the chemical from the pump. Determine which
parts are being attacked and replace them with parts that have been manufactured using more suitable
materials. The manufacturer does not assume responsibility for damage to the pump that has been
caused by chemical attack.
6.2
How to Clean and Lubricate the A-100N
The A-100N will require occasional cleaning and lubricating. The amount will depend on the severity of
service.
]
When changing the pump tube assembly, the pump head chamber, roller assembly and pump head cover
should be wiped free of any dirt and debris.
]
The pump head cover bearing may require grease periodically. Apply a small amount of grease
(Aeroshell aviation grease #5 or equivalent) when necessary.
]
Do not apply lubrication of any kind to the roller assembly or tube assembly.
]
Periodically clean the injection/check valve assembly, especially when injecting fluids that calcify such
as sodium hypochlorite. These lime deposits and other build ups can clog the fitting, increase the back
pressure and interfere with the check valve operation. See section 4.3.4. Fig. 4.10.
]
Periodically clean the suction strainer. Fig.4.9
]
Periodically inspect the air vents located under the motor compartment and on the rear panel. Clean if
necessary.
6.3
How to Replace the Pump Tube
The pump tube assembly will eventually break if not replaced. The tube has been designed for a mini-
mum service life of 500 hours. However, the life of the tube is affected by many factors such as the type
of chemical being pumped, the amount of back pressure, the motor RPM, temperature and others. The
pump tube assembly must be inspected and replaced regularly.
6.3.1
How to Remove the Old Pump Tube
The pump roller assembly spins in a counter clockwise direction. The pump head inlet (suction) side is
located at the bottom of the pump and the outlet (discharge) is located at the top of the pump head.
Inlet Adapter
Outlet Adapter
Pump Head
L
A IT
U
Y
Q
P
T
R
C
O U
D
RESET
TUBE LIFE WARNING TIMER
PRIME
99 SEC. CYCLE
UP
DOWN
TOTAL
TIME
ON
TIME
ADJUST
CYCLE
WHEN LIT
STANDBY
RECOMMEND TUBE CHANGE WHEN DISPLAY BLINKS
CYCLE TIME
ADJUSTMENT
TOTAL TIME
1 TO 99 SECONDS
ON TIME
.1 TO 99 SECONDS
6.3.1.1
Release any pressure that may be in the discharge
tubing.
6.3.1.2
Disconnect the suction and discharge tubes from
the pump tube.
6.3.1.3
Remove the pump head cover.
6.3.1.4
With the pump running, pull the inlet fitting out of
the pumphead. Guide the tube counter clockwise
away from the rollers. Pull the outlet fitting out of
the pump head.
6.3.2
How to Install a New Pump Tube
Be sure the pump head chamber is clean and free of any debris. Remove and inspect the roller assem-
bly. Be sure the rollers spin freely. If required, apply a small amount of grease to the pump head cover
bearing. See section 6.2.
6.3.2.1
With the pump running, insert the inlet (suction) side of the Pump Tube fitting into the lower retaining
slot in the pump head. Fig. 6.2.
6.3.2.2 Carefully
guide the Pump Tube into the pump head. Stretch the tube slightly and insert the outlet
(discharge) fitting into the upper retaining slot in the pump head. Fig. 6.3.
6.3.2.3
Place the clear cover on the pump head and secure with three screws.
FIG. 6.1
FIG. 6.2
FIG. 6.3
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