Great Dane GDRZ72-27KHE, GDRZ61-25KAE Adjusting Deck Lift Assist Spring Tension, Service Mower

SERVICE MOWER

Adjusting Deck Lift Assist Spring Tension

NOTE: Deck lift assist spring tension is adjusted at the factory. If the effort required to raise or lower the mower deck is not satisfactory, an adjustment may be necessary.

Check Spring Tension

1.Park machine on a hard, level surface.

2.Stop engine and lock park brake.

3.Raise the mower deck lift lever to the transport position.

Checking and Adjusting Mower Deck Drive

Belt Tension - 48-, 52- and 61-Inch Mower

Deck

1.Park machine safely. (See Parking Safely in the Safety section.)

2.Adjust the mower deck for the lowest cutting height, and lower the deck.

3.Raise foot platform.

C

A

C

AB

B B

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4.Measure distance (A) between the washers (B) on each deck lift spring assembly.

•The recommended factory setting is approximately 1 mm (1/32 in.) gap between the spring coils at the lowest HOC setting.

Adjust Assist Spring Tension

NOTE: The Chariot LX is equipped with two deck lift assist spring assemblies. Both deck lift assist springs must be adjusted equally.

Do not overtighten the deck lift assist springs. If the springs are compressed too tightly, the mower deck will float too freely.

Decrease deck lift assist spring tension if operating in rough terrain.

While positioned in front of the machine:

•Turn hex nut (C) clockwise to increase deck lift spring tension and reduce the effort to raise and lower the mower deck.

•Turn hex nut (C) counterclockwise to decrease deck lift spring tension and increase the effort to raise and lower the mower deck.

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4.Loosen jam nut (A).

5.Check the mower deck drive belt (B) tension. The belt should deflect a maximum of 13 mm (1/2 in.) when a force of 4.5 kg (10 lb) is applied to the center of the longest span.

When properly adjusted, there would be approximately a 2

mm(1/16 in.) gap between the spring coils.

•To increase belt tension: Turn nut (C) clockwise.

•To decrease belt tension: Turn nut (C) counterclockwise.

6.Tighten jam nut (A).

7.Lower foot platform.

Checking and Adjusting Engine-to-Deck Drive Belt Tension - 72-Inch Mower Deck

1.Park machine safely. (See Parking Safely in the Safety section.)

2.Adjust the mower deck for the lowest cutting height, and lower the deck.

3.Raise foot platform.

Service Mower - 44