20RTK – 23RTK OWNER’S MANUAL 12/8/21 Page 3 of 18
TRENCHER ASSEMBLY INSTRUCTIONS
Upon delivery, check for freight damage and any missing items. If there is damage, notify the carrier and
Barreto Manufacturing immediately. Remove trencher from shipping crate.
When documentation refers to “right side” or “left side”, it is relative to the operator’s position while
standing on the operator’s stand.
Install cushion pad, boom cushion, and boom.
CAUTION!!
The boom is heavy. Two people should be
used to lift it into place. See the exploded view drawing 00368 R1. Push boom on as far as it will go onto
the boom mount (part of the chain motor housing weldment). Be sure adjuster screw is backed out.
SERVICE INFORMATION
HYDRAULIC SYSTEM:
•
Your trencher should arrive with approximately 14 U.S. gallons (53 liters) of tractor transmission /
hydraulic fluid in the tank. Shipping regulations may prohibit shipping with the hydraulic fluid.
Check the reservoir level using the sight gauge on the side of the tank. If required, add tractor
transmission / hydraulic fluid to the reservoir. For machine use in ambient temperatures between
+32°F (0°C) and +90°F (32°C) hydraulic fluid ISO 68 is recommended. If the machine is operated at
temperatures below +32°F (0°C) then hydraulic fluid ISO 46 is recommended.
•
Recheck oil level after trencher has been run and oil has circulated through the components.
Routinely check level thereafter.
•
Change hydraulic fluid filter after the first 50 hours of use. Change it every 200 hours thereafter.
•
Add approximately one quart (1 liter) of hydraulic fluid to reservoir with each filter change.
•
Discard the old filter according to environmental standards in your geographic area.
•
Check all hydraulic fittings for leaks and tighten if necessary.
WARNING - Running the trencher without hydraulic fluid will cause serious damage to the hydraulic
pump. INSURE THAT THE RESERVOIR FLUID LEVEL IS TO THE SIGHT GAUGE BEFORE
STARTING THE MACHINE.
IMPORTANT:
If the couplers between the engine and the pump are
moved or removed for any reason, it is CRITICAL that they have a 1/16”
gap between them when reinstalled. Failure to have this gap will result in
rapid wear and failure of your pump!
NOTE:
It is very important to move the fuel shutoff lever to the closed position after stopping the
engine. Failure to do so could cause fuel to leak down into the cylinder and crankcase. Damage
resulting from this will void your engine warranty and not be covered.
IMPORTANT - The engine on the Barreto trencher may or may not have been serviced prior to shipping.
Shipping regulations may prohibit shipping with fuel or oil in the engine. Check levels and add oil and
fuel as required before starting engine. Service the engine according to the engine owner’s manual before
starting.
