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11
PREOPERTION PROCEDURES
CHECK THE POWER SOURCE
1. Using a calibrated fl ow meter and pressure gauge, make
sure the hydraulic power source develops a fl ow of 7-9
gpm/26-34 lpm for the 8 gpm model and 4-6 gpm/15-23
lpm for the 5 gpm model at 2000 psi/140 bar.
2. Make certain that the power source is equipped with a
relief valve set to open at 2100-2250 psi/145-155 bar.
3. Check that the hydraulic circuit matches the tool for
open-center (OC) or closed-center (CC) operation. The
DS06 is designed for open-center operation only.
CHECK TOOL
1. Make sure all tool accessories are correctly installed.
Failure to install tool accessories properly can result in
damage to the tool or personal injury.
2. There should be no signs of leaks.
3. The tool should be clean, with all fi ttings and fasteners
tight.
4. Observe the arrow on the couplers to ensure that the
hydraulic oil fl ow is in the proper direction. The female cou-
pler is the inlet (pressure) coupler.
5. Check that the trigger operates smoothly and is free to
travel between the "ON" and "OFF" positions.
6. Check that the chain is properly installed. The chain is
designed to only operate in one direction. Make sure the
chain is installed so the bumper guard precedes each dia-
mond segment. See fi gure 1.
Figure 1. Chain Direction
CONNECT HYDRAULIC HOSES
1. Wipe all hose couplers with a clean lint-free cloth before
making connections. If necessary, use a light-weight pen-
etrating oil in a spray can to clean the hose couplers before
each connection.
2. Connect the hoses from the hydraulic power source to
the chain saw fi ttings or quick disconnects. It is a good
practice to connect return hose fi rst and disconnect them
last to minimize or avoid trapped pressure within the chain
saw.
3. Observe the arrow on the couplers to ensure that the
fl ow is in the proper direction. The female coupler on the
chain saw is the inlet (pressure) coupler.
NOTE:
If uncoupled hoses are left in the sun, pressure in-
crease inside the hoses might make them diffi cult to
connect. Whenever possible, connect the free ends of
the hoses together.
CONNECTING TO A WATER SUPPLY
1. Using a standard garden hose, connect the DS06 to a
city or auxiliary water supply. Make sure the fl ow is at least
4 gpm/15 lpm at 50 psi/3.5 bar.
Chain and bar damage will occur if the tool operates
without the proper water supply and water pressure.
2. Make sure the water is running before starting the tool.
3. If a water pump is being used, refer to the manufacturers
instructions for use of the pump. Make sure the pump pro-
duces a minimum watger fl ow of 4 gpm/15 lpm at 50 psi/3.5
bar and the water pressure does not exceed 160 psi/11 bar.
CHECK CHAIN AND BAR ADJUSTMENT
Note:
Check the chain tension often during operation, expe-
cially during the fi rst 1/2 hour when using a new chain.
Adjust the chain accordingly when it becomes loose.
Follow the procedures contained in the Mainenance
and Adjustements section of this manual.
1. Make sure the chain does not exceed a clearance of
5/16 in./8 mm from the bar (see fi gure 2). Exceeding the
maximum clearance increases the chance of the chain be-
ing dislodged from the bar groove.
OPERATION
IMPORTANT
CORRECT
INCORRECT
Segment
Bumper
Guard