Functions of and How to Use Adjustment Mode

7. Moment Adjustment

Before making an adjustment, extend the outriggers fully and set the crane on firm ground for safety.

[NOTICE]

Before starting moment adjustment, raise the hydraulic oil temperature to approx.122 F(50 C) by alternate raising and lowering the boom. Refer to ìAdjustment Value Tableî in the INFORMATION AND DATA section since the conditions and values for moment adjustment vary depending on the specification number. If the moment zero-point value is not within the tolerance at ì7.6 Moment Zero-point Recheckî, follow the fine adjustment steps of the broken line process order.

The procedure to adjust moment is as follows:

7.1 Moment Zero-point Adjustment

7.2 Moment Span Preliminary Adjustment

7.3 Moment Zero-point Check and Fine Adjustment

7.4 Load Radius Adjustment

7.5 Moment Span Fine Adjustment

7.6 Moment Zero-point Recheck End of moment adjustment

Functions of and How to Use Adjustment Mode

7.1 Moment Zero-point Adjustment [NOTICE]

For the conditions and adjustment value of the moment zero-point adjustment, refer to the moment zero-point adjustment item in the ìAdjustment Value Tableî.

Set the crane as follows:

(1)Outriggers mode: Fully extended

(2)Lift mode: Boom lift (Stow jib and single top)

(3)Boom length: Fully retracted

(4)Boom angle: Raise boom until it almost reaches to maximum point, and then lower it until boom angle display corresponds to condition of zero-point adjustment.(Refer to ìAdjustment Value Tableî.)

(5)Hook block position: Hoisted down just clear of ground surface or vehicle structure

(6)Actual status and registered status of number of parts of line: Standard number of parts of line when main boom is fully extended

(7)Hook block: Refer to ìAdjustment Value Tableî. (Stow auxiliary hook block.)

(8)Refer to ìAdjustment Value Tableî according to the crane model, there might be a condition besides above.

1. Select the main menu [ï Adjust ] in the adjustment mode, and press the register key to select the menu.

2. When [:Adjust L&A ] is displayed, press the scroll-down key until the display [:Adjust MMT] appears. Press the register key to select the menu.

3. While the moment zero-point adjustment is displayed, adjust the value indicated in the actual load value indicator finely with the increase or decrease key to conform it to the adjustment value of the zero-point adjustment. Moment zero-point adjustment display: Display [X.XXX z % ]

Moment ratio(%)

Shows zero-point adjustment state

Moment detector input(mV)

The actual load value less than 1 klbs is shown as follows:

0.00 to 0.99 klbs: ì000î to ì099î

-0.99 to -0.01 klbs: ì-99î to ì-01î

4. After the adjustment, press the register key to save the adjusted value.

5. Proceed to ì7.2 Moment Span Preliminary Adjustmentî.

Functions of and How to Use Adjustment Mode

7.2 Moment Span Preliminary Adjustment [NOTICE]

For the conditions and adjustment value of the moment span preliminary adjustment, refer to the moment span preliminary adjustment item in the ìAdjustment Value Tableî.

1. Continued from ì7.1 Moment Zero-point Adjustmentî.

2. Lower the boom to set the boom angle to the condition of the span preliminary adjustment. (Hook block position:Hoisted down until it almost touches ground surface)

3. Press the scroll-up or scroll-down key until the moment span adjustment display appears. Moment span adjustment display: Display [X.XXX s . %]

Moment ratio(%)

Shows span adjustment state

Moment detector input(mV)

4. Adjust the value indicated in the actual load value indicator finely with the increase or decrease key to conform it to the adjustment value of the span preliminary adjustment.

The actual load value less than 1 klbs is shown as follows:

0.00 to 0.99 klbs: ì000î to ì099î

-0.99 to -0.01 klbs: ì-99î to ì-01î

5. After the adjustment, press the register key to save the adjusted value.

6. Proceed to ì7.3 Moment Zero-point Check and Fine Adjustmentî.

7.3 Moment Zero-point Check and Fine Adjustment [NOTICE]

For the conditions and adjustment value of the moment zero-point check and fine adjustment, refer to the moment zero-point adjustment item in the ìAdjustment Value Tableî.

1. Continued from ì7.2 Moment Span Preliminary Adjustmentî.

2. Raise the boom until it almost reaches to the maximum point, and then lower it until the boom angle display corresponds to the condition of the zero-point adjustment. (Hoist down the hook block until it almost touches the ground surface or chassis.)

3. Press the scroll-up or scroll-down key until the moment zero-point adjustment display appears. Moment zero-point adjustment display: Display [X.XXX z % ]

Moment ratio(%)

Shows zero-point adjustment state

Moment detector input(mV)

4. Has the indicated value become the zero-point adjustment value?

The actual load value less than 1 klbs is shown as follows:

0.00 to 0.99 klbs: ì000î to ì099î

-0.99 to -0.01 klbs: ì-99î to ì-01î YES

5. Make an adjustment with the increase or decrease key so that the result becomes the zero-point adjustment value. Then, press the register key to save the adjusted value.

6. Press the display alteration key to exit the menu.

Functions of and How to Use Adjustment Mode

7.4 Load Radius Adjustment [NOTICE]

For the conditions and adjustment value of the load radius adjustment, refer to the load radius adjustment item in the ìAdjustment Value Tableî. Set the crane as follows:

(1)Outriggers mode: Fully extended

(2)Lift mode: Boom lift (Stow jib and single top)

(3)Boom length: Fully extended

(4)Actual status and registered status of number of parts of line: Standard number of parts of line when main boom is fully extended

(5)Hook block: Refer to ìAdjustment Value Tableî. (Stow auxiliary hook block.)

(6)Load radius: After lifting rated lifting capacity of load radius adjustment condition, set actual load radius to meet load radius adjustment condition (load radius) by boom lowering operation. (Cancel AML stop function when overload hinders boom lowering.)

(7)Refer to ìAdjustment Value Tableî according to the crane model, there might be a condition besides above.

1. Select the main menu [ï Adjust ] in the adjustment mode, and press the register key to select the menu.

2. Press the scroll-down key until the load radius adjustment display [: Adj. work rad ] appears. Then, press the register key to select the menu.

3. Press the increase or decrease key so that the load radius adjustment display [Rad. 1s] becomes the load radius adjustment value. Press the register key for that registration.

4. Press the display alteration key to exit the menu.

7.5 Moment Span Fine Adjustment [NOTICE]

For the conditions and adjustment value of the moment span fine adjustment, refer to the moment span fine adjustment item in the ìAdjustment Value Tableî.

Set the crane as follows:

(1)Outriggers mode: Fully extended

(2)Lift mode: Boom lift (Stow jib and single top)

(3)Boom length: Fully extended

(4)Boom angle: Lower boom until the boom angle display corresponds to condition of span fine adjustment.

(5)Hook block position: Hoisted down until it almost touches ground surface or vehicle structure.

(6)Actual status and registered status of number of parts of line: Standard number of parts of line when main boom is fully extended.

(7)Hook block: Refer to ìAdjustment Value Tableî. (Stow auxiliary hook block.)

(8)Refer to ìAdjustment Value Tableî according to the crane model, there might be a condition besides above.

1. Select the main menu [ï Adjust ] in the adjustment mode, and press the register key to select the menu.

2. When [: Adjust L&A ] is displayed, press the scroll-down key until the display [:Adjust MMT] appears. Press the register key to select the menu.

3. Press the scroll-down key until the moment span adjustment display appears. Moment span adjustment display: Display [X.XXX s %]

Moment ratio(%)

Shows span adjustment state

Moment detector input(mV)

4. Using the increase or decrease key, adjust the indicated value so that it becomes the span fine adjustment value. Then, press the register key to save the adjusted value.

The actual load value less than 1 klbs is shown as follows: 0.00 to 0.99 klbs: ì000î to ì099î -0.99 to -0.01 klbs: ì-99î to ì-01î

5. Proceed to ì7.6 Moment Zero-point Recheckî.

Functions of and How to Use Adjustment Mode

7.6 Moment Zero-point Recheck [NOTICE]

For the conditions and adjustment value of the moment zero-point recheck, refer to the moment zero-point adjustment item in the ìAdjustment Value Tableî.

1. Continued from ì7.5 Moment Span Fine Adjustmentî.

2. Retract the boom fully.

3. Raise the boom until it almost reaches to the maximum point, and then lower the boom until the boom angle display corresponds to the zero-point adjustment condition. (Hoist down the hook block until it almost touches the ground surface or chassis.)

4. Press the scroll-up or scroll-down key until the moment zero-point adjustment display appears. Moment zero-point adjustment display: Display [X.XXX z % ]

Moment ratio(%)

Shows zero-point adjustment state

Moment detector input(mV)

5. Has the indicated value become the zero-point adjustment value?

The actual load value less than 1 klbs is shown as follows:

0.00 to 0.99 klbs: ì000î to ì099î

-0.99 to -0.01 klbs: ì-99î to ì-01î

6. Make fine adjustment as shown below. (The following fine adjustment procedures are extracted from ì7.3 Moment Zero-point Check and Fine Adjustmentî.)

(1)Make an adjustment with the increase or decrease key so that the result becomes the zero-point adjustment value. Then, press the register key to save the adjusted value.

(2)Press the display alteration key to exit the menu.

7. Perform ì7.5 Moment Span Fine Adjustmentî. Perform ì7.6 Moment Zero-point Recheckî.

8. Press the display alteration key to exit the menu. The moment adjustment is completed.

Functions of and How to Use Adjustment Mode

8. Clock Adjustment

AML has calender and clock IC inside, which is used for recording errors. Adjust the clock in the following procedure. Adjust the clock in the maintenance mode.

1. Select the main menu [ï Adjust clock] in the maintenance mode, and press the register key to select the menu.

2. When the time is displayed on the moment display, press the scroll-up or scroll-down key to bring the cursor to the place to be adjusted. Time is displayed in the 24-hour basis. The cursor lies under a numeral.

Display example:[ 99. 8. 23 16:30]

3. Press the increase or decrease key to change the value to be adjusted.

4. After the adjustment, press the register key to put the adjustment value onto the IC. If there are plural adjustment places, move the cursor for adjustment in order. Finally press the register key.

5. press the display alteration key to exit the menu.