Stihl HT 73 Support and Manuals
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Instruction Manual - Page 2
...Chain Sprocket 30 Taking Care of Guide Bar 31 Maintaining and Sharpening Saw Chain 31 Maintenance Chart 35 Parts and Controls 36 Specifications 38 Special Accessories 39 Maintenance and Repairs 39 STIHL Incorporated Federal and California Emission Control Warranty Statement 40
STIHl
HT 73
english / USA
Allow only persons who understand this manual, please contact your pole pruner. B2...
Instruction Manual - Page 4
... loss of control. Different models may result in this manual. Safe use of the ...parts of the pruner, do not use a pole pruner. HT 73
3
Have your STlHL dealer show you get tired while operating your pole pruner. These safety precautions and warnings apply to maintain control of your owner's manual...manual and the safety instructions periodically. Observe all STIHL pole pruners.
Instruction Manual - Page 6
...goggles or safety glasses. Continual and regular users should have their use with the specific STIHL pole pruner models are useable with the chain guard. During operation, the powerhead muffler and the material... your pole pruner by STIHL for use may damage your pole pruner to prevent turnover, fuel spillage and damage to the pole pruner.
390BA000 KN
HT 73
5
By hand: When...
Instruction Manual - Page 9
...set the correct idle speed, have your STIHL ...rope around your electric utility and make proper adjustments or repairs. Operate your pole pruner and make sure current is...the risk of personal injury from loss of your owner's manual. For directions to adjust idle speed, see the appropriate...arc. Do not allow the grip to snap back, but guide the starter rope slowly back to permit the rope to hand ...
Instruction Manual - Page 12
... longer move, shut off the pruner and carefully move away fallen limbs.
HT 73
11 To reduce the risk of personal or even fatal injury from the ...
!Warning!
Use only STIHL replacement parts for a component which could snap and fall on the escape path.
!Warning! MAINTENANCE, REPAIR AND STORING
!Warning! Follow the maintenance and repair instructions in the appropriate section of...
Instruction Manual - Page 13
...manual. replace worn sprockets or chains. You can spot a dull chain when easy-to-cut or burn marks appear on the wood. Store pole pruner in a dry place and away from spark plug or with the skin and avoid inhaling fuel vapor!
12
HT 73... the carburetor adjustment screws before undertaking any adjustments, maintenance or repair work not described in your STIHL Owner's Manual should ...
Instruction Manual - Page 18
...HT 73
17 Note: Units with the skin and avoid inhaling fuel vapour. The efficiency of the catalytic converter can drop more than 50 % if several tankfuls of storage.
This, in engine temperature. Some fuel additives not only detrimentally affect elastomers (carburetor... are used. Gasoline
Oil (STIHL 50:1 or equivalent branded TC oils)...use in models with the... cause running problems or even ...
Instruction Manual - Page 26
Operating Instructions
english / USA
During... If it is not slackened off the chain if you have to cool down. HT 73
25 Do not make the mixture leaner to 15 tank fillings. the chain may ...moving parts have retensioned it may damage the crankshaft and bearings.
see chapter "Adjusting the Carburetor". The drive links on the underside of the bar must not come out of cooling air....
Instruction Manual - Page 30
... / Stopping the Engine"! HT 73
29
Rewind Starter
english / USA
If engine is down on power, difficult to start or runs poorly at part load. Always press spark plug boot (2) snugly onto terminal (1) of fire and burn injury, use only spark plugs authorized by STIHL.
Rectify problems which have it replaced by your STIHL dealer!
380BA009 KN...
Instruction Manual - Page 31
... other unauthorized persons.
Therefore, have the chain sprocket replaced by an authorized STIHL servicing dealer.
* see „Guide to check the depth of the wear marks.
390BA012 KN
It is driven via a friction clutch. Use gauge* 0000 893 4101 to Using this Manual"
30
HT 73 Use only original STIHL chain sprockets. english / USA
Storing the Machine
Checking...
Instruction Manual - Page 36
... check sharpness
X
X
Saw chain
Check chain tension
X
X
Sharpen
Check (wear, damage)
X
Clean and turn over
X
Guide bar
Deburr
X
Replace
Check
X
Chain sprocket
Replace 1)
1) STIHL dealer
* see "Guide to Using this Manual"
HT 73
X
X
X
X
X
X
X
X
X
X X
X
X
X
X
X
X
X
X
X
X
35 If your daily working time is longer than normal or cutting conditions are difficult...
Instruction Manual - Page 38
.... Fuel Tank For fuel and oil mixture.
22. Air Filter Cover Covers the air filter element.
8. Clutch
Couples engine to chain sprocket when engine is designed to be activated.
5. Oilomatic Saw Chain A loop consisting of the pull starter, which is the device to the harness.
3. Guide Bar Supports and guides the saw chain.
19. Muffler (with spark...
Instruction Manual - Page 39
Bar length:
Rollomatic with integral fuel pump
Air filter:
Fuel tank capacity: Fuel mix:
Foam element and metal screen
24 fl.oz (0.7 l)
See "Fuel"
Cutting Attachment
Guide bar - Type: - Part No. Part No. - Chain pitch: -
Picco Micro Mini 9.32 mm (3/8"P) 1.1 mm 3987 000 0044
Chain sprocket - Oil tank capacity:
0.17 l (0.36 US pt)
Weight
without bar...
Instruction Manual - Page 41
.... In other emission related assemblies. The warranty repairs will repair your failure to meet the State's stringent anti-smog standards.
EPA standards for small non road engines. In California, new small off -road equipment engine or a part has failed due to a STIHL service center as soon as the carburetor and the ignition system. Also included may...
Instruction Manual - Page 42
... or equivalent replacement part may be warranted for required maintenance at any authorized STIHL servicing dealer or warranty station. These warranted parts are based on the application of the recommended 2-stroke fuel-oil mixture (see also instruction "Fuel"). Deviations from this manual are :
Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark plug...
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