Stanley SK58 Service Manual page 9

PREOPERATION PROCEDURES
Preparation For Initial Use
The tool, as shipped, has no special unpacking or
assembly requirements prior to usage. Inspection to
assure the tool was not damaged in shipping and does
not contain packing debris is all that is required.
Check Hydraulic Power Source
1. Using a calibrated flowmeter and pressure gauge,
check that the hydraulic power source develops a
flow of 7-9 gpm/26-34 lpm at 1500-2000 psi/105-
140 bar.
2. Make certain the hydraulic power source is equipped
with a relief valve set to open at 2100-2250 psi/145-
155 bar minimum.
3. Check that the hydraulic circuit matches the tool for
open-center (OC) operation.
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 fittings and
fasteners tight.
Check Trigger Mechanism
1. Check that the trigger operates smoothly and is free
to travel between the "ON" and "OFF" positions.
Install Drill Steel & Rock Bit
Use standard 4-1/4 inch shank by 1 inch hex drill steel
for SK58110, SK58120 and SK58310 models. Use 4-1/
4 inch shank by 7/8 inch hex drill steel for the SK58130
model.
Drill steels are available in a variety of lengths. Start
with a short length so that the tool may be operated at a
normal standing position. The tool handles should
never exceed chest height during operation.
7
OPERATING INSTRUCTIONS
1. Thread a rock bit onto the drill steel.
2. Rotate the latch (61) out and up.
3. Slide the drill steel into the tool.
4. Rotate the latch down being careful not to pinch
your fingers. When correctly installed, the collar on
the drill steel should be above the bottom of the
latch.
Connect Hoses
1. Wipe all hose couplers with a clean lint-free cloth
before making connections.
2. Connect the hoses from the hydraulic power source
to the hose couplers on the tool. It is a good practice
to connect the return hose first and disconnect it last
to minimize or avoid trapped pressure within the
tool.
3. Observe flow indicators stamped on hose couplers
to be sure that oil will flow in the proper direction.
The female coupler is the inlet coupler.
NOTE: The pressure increase in uncoupled
hoses left in the sun may result in making
them difficult to connect. When possible,
connect the free ends of operating hoses
together.
4. Connect the hose from the air supply to the hose on
the tool.
The air supply must be minimum 30 cfm at
120 psi. Supplying less than these specifi-
cations may result in inadequate extraction
of rock cuttings; cause cuttings to migrate
up the drill steel and into the tool and result
in tool damage; diminish drilling time; and
cause premature wear of the drill bit.
OPERATING PROCEDURES
1. Observe all safety precautions. Make sure you are
wearing eye protection, earing protection, foot
protection, and head protection.