Watson-Marlow 501CC - Manual (Page 6)

6
Installation
A muffler is supplied with the air motor, but not installed. Install a moisture trap and filter in the air line ahead of the motor. If
condensates need to be flushed out of the motor, use clean, dry air at low pressure. For efficiency of output and speed control, use
air lines of the same size or next pipe size larger than the intake port of the motor. A 4 way valve which can be connected by piping
to both air ports of the motor will make reversing possible. Use a pressure regulator or a simple shut off valve to obtain desired power
and conserve air to regulate speed and torque.
Lubrication
Use a detergent SAE #10 automotive engine oil. Lubrication is necessary for all moving parts and rust prevention. We recommend
that an automatic air lubricator be installed in the air line just ahead of the motor. The lubricator should be adjusted to feed one drop
of oil for every 25-35 l/sec, 50-75 CFM, of air going through the motor.
• Manual lubrication-Add 10-20 drops of oil every eight hours of operation through the inlet port while the pump is shut down.
• Automatic lubrication- An In-line oiler should be adjusted to feed one drop per minute for high speed or continuous duty use. Do
not overfeed oil as contamination of the exhaust air may occur.
Troubleshooting
Reason Low torque Low speed Won’t run Runs hot Runs good then
slows down
Dirt, Foreign material x x x
Internal rust x x x
Misalignment x x x x x
Insufficient air pressure x x
Air line too small x
Restricted exhaust x x
Poor lubrication x x x x
Jammed machine x x x x
Compressor too small x x
Compressor too far from unit x x
Pump Specifications
Control range See pump specification label
Voltage/frequency See pump specification label
Power consumption See pump specification label
Operating temperature range 5C to 40C
Storage temperature range -40C to 70C
Noise <75dB(A) at 1m
Standards IEC 335-1, EN60529 (IP55)
Machinery Directive 98/37/EC EN60204-1
Low Voltage Directive 73/23/EEC EN61010-1
EMC Directive 89/336/EEC EN50081-1/EN50082-1
Specific drive performance details such as loaded drive speed variation against mains supply voltage fluctuation and drive stability
from a cold start to normal operating temperature are available on request. For further information please contact Watson-Marlow
Technical Support Centre.
501RLC Pumphead
The 501RLC pumphead has two spring-loaded working rollers, which automatically compensate for minor variations in tubing wall
thickness, giving extended tube life. The 501RLC is set during manufacture to accept tubing with wall thicknesses of between 1.6mm
and 2.0mm, and internal diameters of up to 8.0mm. It is equipped with a “tool lockable” guard for increased safety. This should be
locked shut whilst the pump is in use.
The pumphead can be run clockwise for extended tube life, or anti-clockwise to operate against higher pressures.
501RLC Flow rates
Flow rates for the 501RLC were obtained using silicone tubing with the pumphead rotating clockwise, pumping water at 20C with zero
suction and delivery pressures. For critical applications determine flow rates under operating conditions.