Stihl BT 121 User Guide

ZyAIR Wireless LAN Utility
FCC Statement v
Federal Communications Commission
(FCC) Interference Statement
The Wireless LAN Adapter has been tested to the FCC exposure requirements (Specific Absorption Rate).
The device complies with Part 15 of FCC rules. Operation is subject to the following two conditions:
• This device may not cause harmful interference.
• This device must accept any interference received, including interference that may cause undesired
operations.
This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a commercial environment. This equipment generates, uses, and can radiate radio frequency
energy, and if not installed and used in accordance with the instructions, may cause harmful interference to
radio communications.
If this equipment does cause harmful interference to radio/television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of
the following measures:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and the receiver.
3. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
4. Consult the dealer or an experienced radio/TV technician for help.
Notice 1
Changes or modifications not expressly approved by the party responsible for compliance could void the
user's authority to operate the equipment.
Caution
1. The equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled
environment, under 47 CFR 2.1093 paragraph (d) (2).
2. This Transmitter must not be co-located or operating in conjunction with any other antenna or
transmitter
Certifications
Refer to the product page at www.zyxel.com
.

Stihl BT 121 Specifications

Engine Specifications

displacement	30.8 cm3
bore	35 mm
stroke	32 mm
engine power	1.3 kW
max engine speed without drilling tool	12, 300 rpm
engine idle speed	2, 800 rpm

Sound and Vibration

sound pressure level	101 dB (A)
sound power level	107 dB (A)
vibration left handle	2.6 m/s2

Ignition System

electrode gap	0.5 mm
spark plug thread	M 14 x 1.25; 9.5 mm long
spark plug	Bosch WSR 6 F, NGK BPMR 7 A, Champion RCJ 6 Y

Fuel System

fuel tank capacity	0.64 l
carburetor type	All position diaphragm carburetor
air filter	Paper filter element

Drilling Gear

gear type	Two-stage spur gear drive
gear ratio	47.5:1
max spindle speed	190 rpm

Weight and Dimensions

weight without drilling tool	9.4 kg
length of unit	400 mm
width of handle frame	530 mm