Page 34 - QR CIMAR LASER SCREED

LASER CONCRETE SCREED SETUP

The day of the job, plan on reaching the job site at least one hour before the scheduled arrival of the
concrete. After the machine is unloaded do a thorough walk-around inspection. If you find a serious
problem with the machine speak immediately to your supervisor so that the concrete delivery can be
pushed back (if necessary) until repairs have been completed.

Next, check the fluid levels, including the engine oil and the hydraulic oil. Also confirm that the fuel tank
is topped off and grease vibrator gear box bearings. Inspect the air filter and check the condition of the
battery. Check for any obstructions at the engine cooling air intake and discharge. Check the hydraulic
pump and oil filter and look for chaffed, leaking or broken hoses and fittings check for any signs of wear
that require your attention before going to work. Check the tires and inspect them to make sure they’re
in good condition. Make sure all machine guards, covers and safety decals are in place. Set the Tie Rod
to a 3 degree attack angle.

Attach the masts to the screed head. Slide the bottom of each mast into the support on the screed head
and tighten the retaining clamp. Raise the mast so that the mounting point for the laser receivers is at
about the height of the laser transmitter. Now you can mount the laser receivers to the masts. To do this,
slide the receivers onto the masts and tighten the threaded know. Typically, the receivers face inward
and back towards to operator at a 45 degree angle.

There are just a few items left to check, but they require the engine to be running first. Before we review
these items, let’s briefly review the engine starting process. To begin with, at the Control Panel, you
should reset the Engine On/Off switch. Then, open the access panel on the frame cover and carry out
the following sequence:

1) Move the fuel valve lever under the hood to the ON position.
2) If the engine is cold, pull the choke cable up, which CLOSES the choke. If the engine is warm, cable

is left down.
3) Move the throttle lever away from the SLOW position, about 1/3 of the way toward the FAST

position.
4) Turn the ignition key counter clockwise until the engine starts, the release.

Complete details on starting and stopping the engine, as well as operating, safety, and service
instructions, are contained in the engine Owners Manual. You should familiarize yourself with this
manual before using the screed and refer to it as needed during operations or maintenance.

Once the engine is started, make sure to let it warm up. At the same time you can warm the hydraulic oil
in the system by either driving the machine around or activating the vibrator while the machine is
standing still. NOTE: In cold weather the machine must be driven for at least 5 minutes before turning
on the vibrator. Even after driving for 5 minutes, the vibrator should only be turned on for 1 second
intervals. Do this 10 times to drive the cold oil out of the vibrator hoses. This will prevent the vibrator
shaft seal from failing. Also, once the hydraulic oil is circulating in the system, it may take a while to
reach the optimal temperature of 80 degrees Fahrenheit.

32