castle-docs/content/equipment/farm-machinery/chainsaws/husqvarna-t435.md

title	description	tags	aliases
Husqvarna T435	Husqvarna T435 top-handle chainsaw operating guide	equipment machinery chainsaw	husqvarna-t435 t435

Husqvarna T435

Professional top-handle chainsaw for tree maintenance.

[!danger] Top-Handle Chainsaw - Advanced Training Required This is a top-handle chainsaw designed specifically for tree surgery by trained professionals. Due to the compact handle design, there is an increased risk of losing control. Professional arborist training is mandatory.

[!warning] Read Safety Guide First Before operating, read the chainsaws for PPE requirements, critical safety rules, and emergency procedures.

Specifications

Spec	Value
Make/Model	Husqvarna T435
Engine	35.2 cc, 2-stroke
Power	1.5 kW / 2.0 HP @ 10,000 rpm
Idle speed	2900 rpm
Weight	3.4 kg (without bar/chain)
Fuel tank	0.26 L (260 ml)
Chain oil tank	0.17 L (170 ml)
Fuel mix	50:1 (petrol:2-stroke oil)
Spark plug	NGK CMR6H (gap: 0.65 mm)
Oil pump	Adjustable
Drive sprocket	3/8" Spur 6, 1/4" Spur 8, or 0.325" Spur 7
Storage location	TBD

Safety Devices

Device	Function
Chain brake	Stops chain on kickback - engages manually (push forward) or automatically via inertia
Throttle lockout	Prevents accidental throttle activation
Chain catcher	Catches chain if it breaks or derails
Vibration damping	3-unit system reduces hand-arm vibration
Start/stop switch	Quick engine shutoff

Pre-Use Checks

1. Check fuel level (correct 50:1 mix)
2. Check bar oil level
3. Inspect chain tension - should lift slightly off bar but still move freely
4. Check chain sharpness
5. Inspect bar for damage or wear
6. Check all guards and handles are secure
7. Test chain brake function (push forward to engage, pull back to release)
8. Check for fuel leaks
9. Make sure muffler is correctly attached with no damage
10. Check vibration damping units for cracks or deformation

Starting Procedure

Cold Start

1. Place saw on flat, stable ground
2. Engage chain brake (push front hand guard forward)
3. Set choke to CHOKE position
4. Press air purge bulb until fuel is visible
5. Hold front handle firmly, secure rear with foot or between knees
6. Pull starter rope until engine fires (1-4 pulls typically)
7. Move choke to RUN position
8. Pull starter rope until engine starts
9. Let warm up briefly
10. Release chain brake only when ready to cut

Warm Start

1. Engage chain brake
2. Leave choke in RUN position (no choke needed)
3. Press air purge bulb a few times
4. Pull starter rope until engine starts

[!warning] Starting Safety Never start the engine indoors - exhaust fumes are dangerous. Never start without guide bar and chain fitted - clutch can come loose.

Tree Work

[!danger] Professional Skills Required This top-handle saw is designed for use in trees by trained arborists only.

Tree work requirements:

• Specific professional arborist training
• Proper safety harness, ropes, and climbing equipment
• Always secured with two anchor points (never one)
• Never attempt to catch falling sections
• Work with a ground crew for communication and safety

For ground-level cutting, use the parkside instead - its rear-handle design is safer for non-aerial work.

Shutdown Procedure

1. Release throttle and let engine idle
2. Push start/stop switch to STOP
3. Engage chain brake
4. Allow to cool before storage
5. Clean saw body and bar
6. Top up bar oil

Fuelling

Item	Specification
Fuel type	Unleaded petrol + 2-stroke oil
Mix ratio	50:1 (2% oil)
Fuel tank	0.26 L
Chain oil	Quality bar and chain oil
Oil tank	0.17 L

Adjusting Chain Oil Flow

The oil pump is adjustable. Use a screwdriver on the adjustment screw:

• Clockwise = increase oil flow
• Counterclockwise = decrease oil flow

[!warning] Stop the engine before adjusting oil pump.

Maintenance

Daily

• Clean external parts, ensure no oil on handles
• Check throttle trigger and lockout function
• Check vibration damping units for damage
• Clean and check chain brake
• Check chain catcher condition
• Turn guide bar, check lubrication hole, clean groove
• Verify guide bar and chain getting oil
• Check saw chain condition
• Sharpen chain and check tension
• Check drive sprocket wear
• Clean air intake on starter
• Ensure nuts and screws are tight
• Check stop switch function
• Check for fuel leaks
• Verify chain doesn't rotate at idle
• Check muffler is secure and undamaged

Weekly

• Clean cooling system (air intake, fins, cooling channel)
• Check starter, rope and return spring
• Lubricate needle bearing with grease gun
• Remove burrs from guide bar edges with file
• Clean or replace spark arrestor screen on muffler
• Clean or replace air filter
• Clean between cylinder fins

Monthly

• Check brake band (min 0.6mm thick)
• Check clutch centre, drum and spring
• Clean spark plug
• Clean external carburetor parts
• Check fuel filter and hose, replace if needed
• Check all cables and connections
• Empty and clean fuel tank
• Empty and clean oil tank

Troubleshooting

Problem	Possible Cause	Solution
Won't start	Flooded	Wait 10 mins, try without choke
	No fuel	Refuel with correct 50:1 mix
	Spark plug fouled/wet	Clean and dry spark plug
	Spark plug loose	Tighten spark plug
	Incorrect electrode gap	Set to 0.65 mm
	Starter pawls blocked	Clean around pawls
Starts but stops	Incorrect fuel	Drain and refill with correct mix
	Idle speed wrong	Contact servicing dealer
	Clogged air filter	Clean or replace
	Clogged fuel filter	Replace fuel filter
Chain won't turn	Chain brake engaged	Pull guard rearward to release
	Chain too tight	Adjust tension
Cuts crooked	Dull/uneven chain	Sharpen evenly or replace
Poor lubrication	Blocked oil channel	Clean guide bar oil hole and groove
Chain rotates at idle	Idle speed too high	Turn idle screw counterclockwise; if persists, contact dealer

---

Documentation

• Husqvarna T435 Manual (PDF) - Complete operator's manual

---

Contact

Service	Contact
Repairs/Service	TBD
Training	TBD