Hydraulic Maintenance

HYDRAULIC SYSTEM SPECIFICATIONS


Oil Tank volume:	10 liter (2.6 gal)
Oil Type:	ISO 46 (see page 8)
Hydraulic Filter (large):
510 02 33-01		25 Micron ﬁlter

Hydraulic Filter (small):

542 16 64-49 25 Micron ﬁlter NOTICE: Never use automotive type oil ﬁlters.

They do not have the required ﬂow capacity and can burst during operation.

Replacement Frequency:

Both Filters - After 1st 50 hours, then every 100 hours

Hydraulic Oil - Every 100 hours or once a year

SYSTEM MAINTENANCE

Daily

1.Check hydraulic oil level. Make sure that the oil level on the sight glass is above the lower limit indicated. Add oil as needed.

2.Check for any leaks or kinks on the hydraulic hoses or any other leaks at couplers and ﬁttings.

3Check oil cooler for any debris and dirt buildup. Remove debris with air pressure or spraying with a garden hose. Do not use a high pressure washer directly on the cooler.

REPLACING OIL AND FILTER

Remove the 4 screws as indicated below. This will enable full access to the large oil ﬁlter.

OIL TANK

Drain plug.

ALWAYS REPLACE

both ﬁlters and oil every 100 hours

WATER CONTAMINATION

In humid climates the hydraulic system can collect large amounts of water condensation in the oil tank. This happens due to the humid air in the tank changing from getting hot and cold. Small amounts of water condensation will not be noticeable. If large amounts of water are present, the oil will “foam” or turn “white”. The power pack and other hydraulic tools should not be operated with water contaminated oil.

If water contamination occurs you should replace the oil and ﬁlters. In some cases it is feasible to remove the water contamination out of the oil. The hydraulic hoses should also be emptied.

Procedure for removing the water:

1.Install the hoses and connect the ends together.

2.Start the engine and turn on the ﬂow selector to the 40 liters (10 gal)

3.Let the engine operate for 5 minutes at this ﬂow setting.

4.Turn of the engine and drain the oil tank in an appropriate container. Preferably – remove the quick couplers on the hoses and drain oil into a container.

5.The water in the contaminated oil will settle at the bottom of the container in approximately 24 hours. The oil will now appear “normal”.

6.Carefully pour the clean oil back into the tank – leaving the water in the container.

7.REPLACE the oil ﬁlters.

TROUBLESHOOTING THE HYDRAULIC SYSTEM

To adequately diagnose and troubleshoot any problems relat- ed to the hydraulic system it is necessary to have a hydraulic tester consisting of a ﬂow meter and pressure gauge. Never readjust the pressure relief valve without the proper hydraulic diagnostic tool.

CONTACT a local Husqvarna dealer or Husqvarna Construction Products for diagnostic help.

PP 418 specifications

The Husqvarna PP 418 is a versatile and powerful pole saw designed specifically to tackle various pruning and cutting tasks with ease and efficiency. Tailored for both homeowners and professionals alike, the PP 418 combines an array of innovative technologies and features that enhance its usability and performance.

One of the standout characteristics of the Husqvarna PP 418 is its lightweight design, which allows users to maneuver it effortlessly during extended periods of use. This feature is advantageous for homeowners with larger gardens or for professionals who often find themselves working in different locations. The telescopic shaft can be extended, increasing its reach and enabling users to access high branches without the need for a ladder.

Powering the PP 418 is a robust gas engine that provides a perfect balance of power and efficiency. This ensures that users can efficiently cut through thick branches and limbs without experiencing the fatigue associated with weaker saws. The engine is engineered to offer outstanding torque, allowing for smooth operation even under heavy load conditions.

Safety is another priority in the design of the Husqvarna PP 418. It features a protective hood that shields the operator from falling debris while working. Additionally, the ergonomic handle is designed to provide a secure grip, reducing the risk of accidents during operation. The weight distribution of the tool has been carefully considered to minimize strain on the user's arms and back.

Husqvarna's unique LowVib® technology is incorporated into the PP 418, which significantly reduces vibrations experienced during operation. This added feature not only enhances comfort but also helps to prevent long-term health issues associated with prolonged exposure to vibrations.

Another notable feature of this pole saw is the easy-to-use chain tensioning system, which allows users to adjust the chain tension quickly without the need for additional tools. This is particularly beneficial for maximizing efficiency and maintaining optimal performance throughout the workday.

Moreover, the Husqvarna PP 418 is equipped with a quality cutting bar and chain that ensures clean cuts every time. The durable materials used in its construction promote longevity, making it a worthwhile investment for both casual users and professionals who require reliability in their equipment.

Combining innovative features, outstanding power, and user-friendly design, the Husqvarna PP 418 stands out as an excellent choice for anyone looking to maintain their trees and shrubs efficiently and safely.