Clarke ELS140, Operating & Maintenance Instructions

Page: 7 / 14

7
OPERATION
Make certain the PUMP ON/OFF switch which is located on the front panel, is set
to the OFF position.
Connect the plug to the mains supply preferably via a Residual Current Device.
Turn the water tap fully on.
When starting, you should always adopt the following procedure:
1. In order to ease the starting process, and to prevent the possibility of blown
fuses, pull the trigger on the lance - it may be necessary to release the safety
latch, located in the base of the hand grip, in order to do so.
2. Hold the trigger in that position whilst switching the pump ON, and allow the
pump to run for a few moments to develop full pressure
3. You may release the trigger once full pressure is developed. In doing so the
pump will stop, and will start again as soon as the trigger is pressed once more.
NOTE: For the reasons given above, it is recommended that you ALWAYS set the jet
to its LOW PRESSURE setting before switching ON. This is achieved as follows:
Fig.4
All Models
Screw the loose end of the high
pressure hose from the Lance, into the
high pressure outlet at the front of the
machine, shown at C Fig. 2.
Take care not to cross thread the fine
threads.
The low pressure water inlet, shown at
D, Fig. 2, carries a 3/4” BSP thread.
A 3/4” BSP adapter with a 1/2” hose
connector is provided, so that a suitable
hose (not supplied), may be attached.
You may use a either a worm drive clip
(not supplied), or a snap-on type
connector, commonly available from
most hardware or DIY stores, to attach
the hose, the other end of which should
be connected ti your water supply.
We recommend that you connect to
a supply of CLEAN WATER ONLY.