Troubleshooting; Specifications - Briggs & Stratton Vanguard 540000 Operator's Manual

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Operator's manual (93 pages)

Operating & maintenance instructions (12 pages)

Operating and maintenance instructions manual (10 pages)

Table Of Contents

Table of Contents

Available languages

How To Service The Air Filter - Figure 7

WARNING

Fuel and its vapors are extremely flammable and explosive.

Fire or explosion can cause severe burns or death.

Never start or run the engine with the air cleaner assembly (if equipped) or the



air filter (if equipped) removed.

NOTICE: Do not use pressurized air or solvents to clean the filter. Pressurized air can

damage the filter and solvents will dissolve the filter.

The air filter system uses either a cyclonic air filter or a low-profile air filter. See the

Maintenance Chart for service requirements.

Cyclonic Air Filter System (Figure 7)

1. Open the latches (A) and remove the cover (B). See Figure 7.

2. Remove the air filter (C).

3. To loosen debris, gently tap the air filter on a hard surface. If the air filter is

excessively dirty, replace with a new air filter.

4. The cyclonic air filter system also has a safety filter (D). See the Maintenance

Chart for service requirements. To remove, carefully pull the safety filter away from

air cleaner body (E) and discard. Make sure that dirt or debris do not enter the

engine.

5. Install the new safety filter in the air cleaner body.

6. Install the air filter over the safety filter.

7. Install the cover and close the latches.

Low-Profile Air Filter System (Figure 8)

1. Remove the knob (F) and the cover (G). See Figure 8.

2. Remove the nut (H) and the retainer (J).

3. Remove the air filter (K).

4. Remove the pre-cleaner (L), if equipped, from the air filter.

5. To loosen debris, gently tap the air filter on a hard surface. If the air filter is

excessively dirty, replace with a new air filter.

6. Wash the pre-cleaner in liquid detergent and water. Then allow it to thoroughly air

dry. Do not oil the pre-cleaner.

7. Assemble the dry pre-cleaner to the air filter.

8. Install the air filter and secure with retainer and nut.

9. Install the cover and secure with knob.

Engine Specifications

Model

Displacement

Bore

Stroke

Oil Capacity

Tune-up Specifications *

Model

Spark Plug Gap

Spark Plug Torque

Armature Air Gap

Intake Valve Clearance

Exhaust Valve Clearance

* Engine power will decrease 3.5% for each 1,000 feet (300 meters) above sea level and 1% for each 10 F (5.6 C) above 77 F (25 C). The engine will operate satisfactorily at an

angle up to 15. Refer to the equipment operator's manual for safe allowable operating limits on slopes.

Service Part

Air Filter, Cyclonic

Safety Filter, Cyclonic

Air Filter, Low-Profile

Air Filter, Low-Profile - Generator UL

Pre-Cleaner, Low-Profile

Oil -- SAE 30

n We recommend that you see any Briggs & Stratton Authorized Dealer for all maintenance and service of the engine and engine parts.

Specifications

540000

54.68 ci (896 cc)

3.366 in (85.5 mm)

3.071 in (78.0 mm)

78 -- 80 oz (2.3 -- 2.4 L)

540000

0.020 in (0.51 mm)

180 lb-in (20 Nm)

0.005 - 0.008 in (0.13 - 0.20 mm)

0.004 - 0.006 in (0.10 - 0.15 mm)

Part Number

841497

821136

692519

841856

692520

100028

How To Clean The Air Cooling System - Figure 9

WARNING

Running engines produce heat. Engine parts, especially muffler,

become extremely hot.

Severe thermal burns can occur on contact.

Combustible debris, such as leaves, grass, brush, etc. can catch fire.

Allow muffler, engine cylinder and fins to cool before touching.



Remove accumulated debris from muffler area and cylinder area.



NOTICE: Do not use water to clean the engine. Water could contaminate the fuel

system. Use a brush or dry cloth to clean the engine.

This is an air cooled engine. Dirt or debris can restrict air flow and cause the engine to

overheat, resulting in poor performance and reduced engine life.

Use a brush or dry cloth to remove debris from the finger guard/rotating screen (A,

Figure 9). Keep linkage, springs and controls (B) clean. Keep the area around and

behind the muffler (C) free of any combustible debris. Make sure that the oil cooler fins

(D) are free of dirt and debris.

Clean the area under the panel (E, Figure 10). Loosen the two screws (F) until you hear

a click. Remove the panel and clean the area of dirt and debris. Make sure the underside

of the panel is also clean. Install the panel and tighten the screws until you hear a click.

Storage

WARNING

Fuel and its vapors are extremely flammable and explosive.

Fire or explosion can cause severe burns or death.

When Storing Fuel Or Equipment With Fuel In Tank

Store away from furnaces, stoves, water heaters or other appliances that have



pilot lights or other ignition sources because they can ignite fuel vapors.

Engine Oil

While the engine is still warm, change the engine oil.