Reference
Only
OPERATING CONTROLS AND PROCEDURES
2250 MAX-ER 2000 OPERATOR’S MANUAL
3-10
Published 01-08-13, Control # 049-05
Symbol Identification
The symbols shown in Figure 3-4 are used to identify
controls on current production remote controls.
MAX-ER Remote Controls
See Figure 3-3, View A for identification of following controls.
Connect cord from MAX-ER remote control to receptacle on
left side of counterweight trailer (Figure 3-3, View B).
All MAX-ER remote switches, except Counterweight Raise/
Lower switch, can be operated in any crane mode with the
MAX-ER mode either on or off.
1.
Power Switch
Button held DOWN to TURN ON power to the remote
control.
RELEASE button to TURN OFF power to the remote control.
2.
Left Counterweight Trailer Jack Control
3.
Center Counterweight Trailer Jack Control
4.
Right Counterweight Trailer Jack Control
To g g l e U P t o E X T E N D j a c k i n g c y l i n d e r ( R A I S E
counterweight).
RELEASE toggle to STOP (lock) jacking cylinder in last
position.
Toggle DOWN to RETRACT jacking cylinder (LOWER
counterweight).
5.
All Jacking Cylinders Control
Toggle UP to EXTEND all jacking cylinders at same time.
RELEASE toggle to STOP (lock) jacking cylinders in last
position.
Toggle DOWN to RETRACT all jacking cylinders at same
time.
6.
Steering Pins Control
Toggle UP to DISENGAGE steering pins.
Toggle DOWN to ENGAGE steering pins.
7.
Steering Control
Toggle UP to rotate wheel assembly to SWING/CRAB
position.
RELEASE toggle to STOP wheel assembly rotation.
Toggle DOWN to rotate wheel assembly to STRAIGHT
STEERING position.
8.
Counterweight Control
This switch is provided only for assembly or disassembly. It
allows counterweight straps to be slackened during
counterweight installation and removal. This switch cannot
be operated when MAX-ER mode is on.
Toggle UP to RAISE MAX-ER counterweight (retract strap
cylinders).
RELEASE toggle to STOP (lock) counterweight in last
position.
Toggle DOWN to LOWER MAX-ER counterweight (extend
strap cylinders).
9.
Tongue Cylinder Control
This switch is provided for tongue alignment during
assembly.
Toggle UP to RAISE tongue (extend cylinder).
RELEASE toggle or button to STOP (lock) tongue in last
position.
Toggle DOWN to LOWER tongue (retract cylinder).
Mast Strap Pins Remote Control
See Figure 3-3, View D for identification of following control.
DANGER
Tipping Hazard!
Trailer can tip:
•
Extend and retract jacking cylinders slowly and
carefully to keep trailer as level as possible.
•
Jacks must be extended or wheels must be in 90°
standalone position (parallel to front of trailer) to
support trailer when it is disconnected from crane.
•
Make sure trailer pins are in proper position when
operating jacks and performing other installation/
removal procedures. See Figure 3-20 for correct pin
positions.
•
Read and understand Trailer Jacking Procedure
before operating MAX-ER Remote Control.
DANGER
Tipping Hazard!
Counterweight control is used to manually extend and
retract counterweight cylinders only during MAX-ER
assembly and disassembly. Any other use of this control is
neither intended nor approved.
Read MAX-ER Assembly Guide in Section 4 before using
counterweight control. Improper use of control can cause
crane to tip backwards or mast to collapse.
