Husqvarna FS 8400 D Hydraulic System, Important Advice, Engine Speed Adjustment, Accessories

Replace all shields and guards.

Never run Saw with out all shields in

12 Hydraulic System

(See Figures 1-6)

The hydraulic system on this saw is used to RAISE/ LOWER the Diamond Blade (2E), and to propel the saw FORWARD and REVERSE. The hydraulic system consists of a Hydrostatic Pump (5N), (2) Hydraulic Wheel Motors (4F), Hydraulic Filter (5K), DC Lift Pump (5H), Hydraulic Oil Reservoir (5J), Flow Control Valve (1U), and Hydraulic Lift Cylinder (4G).

•Hydraulic Filter (5K) should be changed after the first 50 hours of operation, then every 250 hours of operation.

•Check Hydraulic Reservoir (5J) fluid level periodically.

Maintain oil level with SAE 15W40 API Class SE, CC, CD motor oil. DO NOT OVERFILL, check oil level when saw is level.

•Change hydraulic fluid every 500 hours of operation.

Fill Hydraulic Reservoir (5I,5J) with approximately 2.5 quarts of SAE 15W40 API Class SE, CC, CD motor oil. DO NOT OVERFILL! Check oil level when saw is level.

•The lowering rate of the saw can be adjusted using the Flow Control Valve (1U) at the rear of the saw. If the saw falls too quickly, turn the knob on the Flow Control Valve (1U) CLOCKWISE until an adequate lowering rate is set.

13 Important Advice

(See Figures 2-3)

•Tighten loose nuts and bolts regularly, particularly after several hours of operation.

•Check V-Belt (3M) tension regularly. Re-tighten V‑Belts (3M) as necessary.

•Remove the Diamond Blade (2E) for storage. Store it carefully.

•Check the water spray over the Diamond Blade (2E) periodically.

•Tighten the Diamond Blade (2E) firmly on the Blade

Arbor (2C).

•Make sure the contact faces of Flanges (2B & 2F), Diamond Blade (2E), and Blade Shaft (2I) are clean.

Store in a safe place out of reach of children. Remove all adjustment tools and wrenches. Store diamond tool in a safe place so it cannot be damaged.

14 Engine Speed Adjustment

(See Figures 1-6)

Serious injury can occur to the operator or people in the work area if the rotational speed (n/min) of the Diamond Blade (2E) exceeds the maximum speed (n/min) marked on the Diamond Blade (2E).

Each FS6600 / FS8400™ models, as delivered from the factory, are designed to operate with a specified range of blade sizes. If a blade size outside the specified range of sizes for your model must be used, then the saw drive configuration must be changed. [For example: If changing

from a small to a very large Diamond Blade (2E), the Blade Shaft Pulleys (3L), Gearbox Pulleys (3N) and the Blade Shaft Flanges (2B & 2F) must be changed.]

For example: To change from a 26” drive to a 42” drive:

1.Change Gearbox Pulley from 4.12” DIA to 3.65” DIA.

2.Change Blade Shaft Pulley from 4.75” DIA to 6.40” DIA.

3.Change Blade Flanges from 5” DIA to 7” DIA.

4.Change Blade Guard from 26” to 42”.

5.Engine Speed does not change.

See Blade Size Conversion charts for specific information.

15 Accessories

BLADE GUARD CONVERSION KITS:

Use the proper size blade guard for the particular diamond blade size being operated. The following blade guards are available for these diamond blade sizes:

Guard	Blade Sizes
60” (1500mm)	48” - 60” (1200	- 1500mm)
48” (1200mm)	36” - 48” (1000 - 1200mm)
42” (1000mm)	30” - 42” ( 750	-	1000mm)
36” ( 900mm)	24” - 36” ( 600	-	900mm)
30” ( 750mm)	18” - 30” ( 450	-	750mm)
26” ( 600mm)	14” - 26” ( 350	-	650mm)
18” ( 450mm)	14” - 18” ( 350	-	450mm)

See Blade Size Conversion charts for specific information.

WEIGHT KITS:

Standard as on: 42” (1000mm), 48” (1200mm) & 60” (1500mm).

542 19 61-72	Kit, Rear weights 2		Bars	42”
542 19 80-22	Kit, Rear weights 3		Bars	48”
542 19 97-57	Kit, Rear weights 6		Bars	60”
(includes: Side weights)		5	Bars w/ handles

54