Related Manuals for Zenoah CHTZ2401
Summary of Contents for Zenoah CHTZ2401
- Page 1 HEDGE TRIMMER USA models: CHTZ2401/ 2460 and HTZ2401/ 2460 EU models: CHTZ6000/ 7500, HTZ7500 and eHT602D/ 752S China models: HTZ7510, CHTZ6010 and eHT603D/ 753S Workshop Manual February 2010...
- Page 2 The contents may be modified due to performance improvement or some other reason without notice. 2. Use Zenoah brand-name parts when replacing a part during maintenance, etc. The manufacturer does not bear any responsibility if trouble occurs during parts use of other than brand-name parts.
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Page 3: Table Of Contents
Contents 1. Engine Specifications ....................2 2. Engine Construction/ Maintenance Specifications........3. Engine Special Tools................... 4. Engine Service Guide 4-1 Clutch Shoe Removal ....................8 4-2 Rotor Removal ......................9 4-3 Module Assembly ......................10 4-4 Piston Pin Removal ..................... 10 4-5 Clutch Assembly (GZ23) ..................... -
Page 4: Engine Specifications
1.10/ 6,000 1.00/ 7,000 N･m/ rpm Torque (0.11/ 6,000) (0.10/ 7,000) (kgf･m/ rpm) ※3 ※2 ※2 1.00/ 7,000 1.10/ 5,000 0.90/ 6,000 (0.10/ 7,000) (0.11/ 5,000) (0.09/ 6,000) Mixture (Gasoline 50: Oil 1) Fuel When using Husqvarna Zenoah genuine oil... -
Page 5: Engine Construction/Maintenance Specifications
2. Engine Construction/ Maintenance Specifications GZ23N Engine (1/2) Bolt M5x L16 T27 (3) 2.94～ ～ ～ ～ 5.88 N・ ・ ・ ・ m Cap Assy. (30～ ～ ～ ～ 60 kgf・ ・ ・ ・ cm) Knob 0.49～ ～ ～ ～ 0.98 N・ ・ ・ ・ m (5～... - Page 6 2. Engine Construction/ Maintenance Specifications GZ23N Engine (2/2) Bolt M5x L16 T27 (4) 2.94～ ～ ～ ～ 5.88 N・ ・ ・ ・ m Recoil Assy. (30～ ～ ～ ～ 60 kgf・ ・ ・ ・ cm) Bolt M4x L16 T27 (2) Bolt M5x L16 T27 (2) Grommet Nut M8x P1.0...
- Page 7 2. Engine Construction/ Maintenance Specifications G20LH Engine (1/2) Screw TP M4x L16 (4) 1.96～ ～ ～ ～ 2.94 N・ ・ ・ ・ m (20～ ～ ～ ～ 30 kgf・ ・ ・ ・ cm) Bolt M6x L12 (2) Recoil 4.90～ ～ ～ ～ 7.84 N・ ・ ・ ・ m (50～...
- Page 8 2. Engine Construction/ Maintenance Specifications G20LH Engine (2/2) Nut M8x P1.0 7.68～ ～ ～ ～ 11.8 N・ ・ ・ ・ m (80～ ～ ～ ～ 120 kgf・ ・ ・ ・ cm) Cord Comp. Rotor Bolt M4x L20 (2) 2.45～ ～ ～ ～ 3.92 N・ ・ ・ ・ m (25～...
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Page 9: Engine Special Tools
3. Engine Special Tools Model Part No. Part Name External Appearance Usage (RedMax P/N) GZ23N G20LH For socket screw of 3304-97611 Hex Wrench Hex.3mm, 4mm, and ○ ○ (520 956 10-01) 5mm. 2670-96410 For socket screw of Torx Wrench ○ ○... -
Page 10: Engine Service Guide
4. Engine Service Guide 4-1 Clutch Shoe Removal 1. Remove the spark plug, and set the piston stopper GZ23N into the plug hole. Mounting Bolt (HEX 14mm) 14mm GZ23N Piston stopper: 4810-96220 (521 34 51-01) Clutch Shoe G20LH Piston stopper: 2670-96220 (516 89 93-01) 2. -
Page 11: Rotor Removal
4. Engine Service Guide 4-2 Rotor Removal 1. Remove the recoil assembly and engine cover. GZ23N 2. Remove the spark plug, and set the piston stopper into the plug hole. Rotor 3. Remove the rotor from the crankshaft. GZ23N: -1. Loosen the rotor nut. -2. -
Page 12: Module Assembly
4. Engine Service Guide 4-3 Module Assembly Insert a gauge (3350-96240/ 521 06 82-01) between the rotor magnet metal and module. Tighten the bolts Rotor while pushing the module against the rotor. Hex Wrench NOTE: Apply Lock Tight (Medium strength type: (3304-97611/ 520 956 10-01) Threebond 1342, LOCTITE 242 or equivalent to) to... -
Page 13: Clutch Assembly (Gz23)
4. Engine Service Guide 4-5 Clutch Assembly (GZ23N) Before installing the clutch, apply the molybdenum GZ23N grease into the mounting holes of he clutch shoe, and Mounting Screw make sure that the arrow mark on the shoe is to the 4.90～7.8 N・m Wave Washer clutch plate side. -
Page 14: Piston Inserting Direction
4. Engine Service Guide 4-8 Piston Inserting Direction Make sure to point the recessed mark (arrow or Arrow Mark triangle) on the piston head to the exhaust (muffler) side. [Exhaust Side] Piston 4-9 Piston Pin Snap Ring Assembly Fit the snap ring in the groove firmly and position the end gap of the snap ring opposite the notch. -
Page 15: Engine Short Block Assembly
4. Engine Service Guide 4-10 Engine Short Block Assembly Reassemble the engine in the reverse order of removal, and note these items. ● Apply 2T oil to the main bearing, smaller-end (needle) bearing, piston, inside of the cylinder, the space between the weight and the bearing. -
Page 16: Insulator Assembly
4. Engine Service Guide 4-11 Insulator Assembly Match the elongate hole of the insulator to the pulse hole of the cylinder. Insulator Elongate Hole Pulse Hole Cylinder Gasket 4-12 Connecting of Fuel Pipes When connecting the fuel pipes, connect the suction pipe (black) and return pipe (clear) properly. -
Page 17: Carburetor Specifications
5. Carburetor Specifications Item Specifications Sales Region USA model EU model China model CHTZ6000 Hedge Trimmer CHTZ2401/ 2406 eHT602D HTZ7510 eHT753 CHTZ7500 Model HTZ2401/ 2406 eHT725S CHTZ601 eHT603 HTZ7500 Engine Type GZ23N GZ23N G20LH GZ23N G20LH Type Name WYA-67 WYA-39... -
Page 18: Carburetor Construction/Maintenance Specifications
6. Carburetor Construction/ Maintenance Specifications GZ23N G20LH Swivel Swivel Washer Throttle Valve Ring Assembly Throttle Valve Assembly Ring Carburetor Body O-Ring Carburetor Body Main Jet #36 or #39 USA model only Gasket H-Needle Pump Diaphragm O-Ring Screen Main Jet #33 Gasket Body Assembly Spring... -
Page 19: Carburetor Service Guide
② 7-2 Carburetor Conforms to Exhaust Emissions Regulations (USA, EU model only) The carburetor flow rates of all Husqvarna Zenoah engine blowers are individually pre-adjusted to pass exhaust emissions regulations. A limiter cap is installed in the idling limiter to prevent an operator carelessly changing the idle setting resulting in non-conformance with exhaust emission regulations. -
Page 20: Limiter Cap Removal/ Installation
7. Carburetor Service Guide 7-3 Limiter Cap Removal/ Installation Tool The limiter cap tool (carburetor maintenance tool: Limiter cap tool extraction side Limiter Cap Tool 848-8W9-0080/ 521 53 38-01) is used for limiter cap Screw unit installation/removal. (M2 counterclockwise threading) Limiter cap insertion side Removal Insert the limiter cap tool extraction tool's threading... -
Page 21: Carburetor Inspection
7. Carburetor Service Guide 7-5 Carburetor Inspection Inlet Valve Leaking Test Connect a leak tester to the fuel inlet port of the carburetor. After filling the metering chamber with fuel, apply pressure to the inlet valve and read the opening pressure and the reseating pressure. - Page 22 7. Carburetor Service Guide b. Judgments of the main check valve ● As illustrated, hold a plastic pipe on the check valve and blow and suck air by your mouth. If the air is stopped by blowing, and open by sucking, the Plastic Pipe valve has no failure.
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Page 23: Carburetor Adjustment
● The carburetor and carburetor insulator block screw must be tight. ● The fuel must be fresh (properly mixed at 40:1 ratio with Husqvarna Zenoah or 50:1 ratio with RedMax) ● All standard air tubes (Air Pipes) must be installed. - Page 24 7. Carburetor Service Guide Adjustment if engine does not activate Set the adjustable parts as specified according to the following procedure. 1. Loosen the throttle valve adjust screw until the Throttle Valve throttle valve becomes completely free, then turn Adjust Screw the screw clockwise (CW) until the regulated angle is attained.
- Page 25 7. Carburetor Service Guide Rich Down Adjustment 1. Turn the idling limiter (L-needle) clockwise (CW) to the position of maximum engine speed. (Peak) Throttle Valve 2. Turn the throttle valve adjust screw in either Adjust Screw direction to match to the regulated ID peak speed. (Refer to page 15 "5.
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Page 26: Unit Specifications
8. Unit Specifications USA model Model Name HTZ2460 HTZ2460L CHTZ2460 CHTZ2460L Length 1,125 (44.3) 1,455 (57.3) 1,082 (42.6) 1,217 (47.9) mm (in) Overall Width 243 (9.57) 243 (9.57) 243 (9.57) 243 (9.57) mm (in) Dimensions Height 207 (8.15) 207 (8.15) 207 (8.15) 207 (8.15) mm (in) -
Page 27: Unit Construction/Maintenance Specifications
9. Unit Construction/Maintenance Specifications With Slipping Function Type Standard Type Direction of Bolt wave washer 7.8～ ～ ～ ～ 11.8 N・ ・ ・ ・ m Upward (80～ ～ ～ ～ 120 kgf・ ・ ・ ・ cm) Left-hand thread Clutch Drum Left-hand thread Wave Washer １... -
Page 28: Unit Special Tools
10. Unit Special Tools Model Part No. Part Name External Appearance Usage With Slipping (RedMax P/N) Standard Type Function Type For socket screw of 3304-97611 ○ ○ Hex Wrench Hex.3mm, 4mm, and (520 95 61-01) 5mm. 2670-96410 For socket screw of ○... -
Page 29: Cutting Blade Assembly Removal
11. Unit Service Guide 11-2 Cutting Blade Assembly Removal 1. Remove the six mounting bolts, then remove the Felt gear case (bottom). Lower Gear Case 2. Remove the two mounting bolts, then remove the Mounting Bolt cutting blade assembly. NOTE: ・... -
Page 30: Grease Supply To Gear Case
Specified grease: Grease for lithium heatproof system (#2) Gear Case NOTE: When using Husqvarna Zenoah genuine power grease, remove the grease nipple from the gear case. Screw in the container point of grease, and supply grease. - Page 31 1001 SY-NZ003...