Maintenance - RIDGID R8720 Operator's Manual

OPERATION
The range of speeds available in each setting are:
 Low (1) .......................................................0-1,600 RPM
 Medium (2) .................................................0-2,400 RPM
 High (3).......................................................0-3,200 RPM
 Auto Mode (A) ............................................0-2,100 RPM
NOTICE:
Never change modes while the tool is running.
Doing so may result in serious damage to the tool.
LED LIGHT
See Figure 7, page 10.
The LED light around the anvil illuminates when the switch
trigger is depressed. If the tool is not in use, the time-out
feature will cause the light to start fading and then shut off.
The LED light illuminates only when there is a charged bat-
tery pack in the tool.
OPERATING THE IMPACT WRENCH
See Figure 8, page 10.
CAUTION:
The metal surface may become hot during use.
Avoid contact with it to avoid possible burn injury.
Proper fastening torque may be determined by the kind of
bolt, the size of the bolt or the material or the workpiece. It
is helpful to perform a test operation to determine the proper
fastening time for the nut or bolt you are using.

MAINTENANCE

WARNING:
When servicing, use only identical replacement
parts. Use of any other parts could create a hazard
or cause product damage.
This product has a 90-Day Satisfaction Guarantee Policy, as well as a Three-year Limited
Warranty. For Warranty and Policy details, please go to powertools.ridgid.com or
NOTE: ILLUSTRATIONS START ON PAGE 9 AFTER
FRENCH AND SPANISH LANGUAGE SECTIONS.
call (toll free) 1-866-539-1710.
 Hold the tool with one hand and with the socket over the
nut or bolt.
 Depress the switch and fasten for the proper fastening
time.
 Remove the impact wrench from the nut or bolt.
 Check the torque with a torque wrench.
NOTICE:
Do not use this tool to install lug nuts on wheels
without a torque limiting device. Doing so could
result in galled or broken lugs.
IMPACT TIME
Many variables exist that will cause the maximum torque
to the fastener to vary considerably, including the size and
threading of the fastener, lubrication, material hardness, and
environmental conditions.
NOTE: Using a universal joint or extension bar may reduce
the fastening force of the impact wrench and require longer
fastening time.
NOTICE:
After the head of a nut or bolt has seated,
additional impacting will increase the chance of
shearing bolts, nuts, sockets or tearing into wood.
ELECTRIC BRAKE
The electric brake will stop the socket rotation after the
operator releases the switch trigger.
GENERAL MAINTENANCE
Avoid using solvents when cleaning plastic parts. Most
plastics are susceptible to damage from various types of
commercial solvents and may be damaged by their use. Use
clean cloths to remove dirt, dust, oil, grease, etc.
7 - English