PIPE AS 3618856 - Caterpillar

Counterweight Removal and Installation for Standard Machines
Unexpected machine movement can cause injury or death.In order to avoid possible machine movement, move the hydraulic lockout control to the LOCKED position and attach a Special Instruction, SEHS7332, "Do Not Operate" or similar warning tag to the hydraulic lockout control.
Personal injury or death can occur from a counterweight falling during removal or installation.Do not allow personnel under or around the counterweight during removal or installation.Make sure that the lifting device is in good condition and is capable of handling the weight of the counterweight.
Make certain personnel are clear of cable when there is a load on it. Cable can break and cause personal injury.
Counterweight Removal
Note: Before you remove the counterweight, disconnect the wiring for the rear view camera. Refer to Operation and Maintenance Manual, "Camera Harness - Disconnect and Connect" for more information.
Position the machine on a surface that is hard and level. Lower the work tool to the ground.
Move the hydraulic lockout control to the LOCKED position.
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Remove the five bolts from cover (1).
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Open cover (1) and lock the cover into the OPEN position. Use bar (2) in order to support the cover while the cover is in the OPEN position.
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Fasten a proper rated cable with shackles to the brackets. Use an appropriate lifting device in order to tension the cable.
Lift the counterweight enough so that there is no load on the retaining bolts. Removing the bolts is difficult if the cable is too tight. Removing the bolts is difficult if the cable is too loose.
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Remove the six counterweight mounting bolts and six washers.
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Separate the counterweight from the machine. Lower the counterweight onto suitable supports. Counterweight Installation
Perform the installation procedure in reverse order.Note: Temporarily tighten the six counterweight mounting bolts. Decrease the tension on the lifting cable. Make sure that the counterweight is correctly positioned on the retaining pins. Tighten the bolts to a torque of 2700 300 N m (1990 220 lb ft).Note: After the counterweight has been installed, reconnect the wiring for the rear view camera. Refer to Operation and Maintenance Manual, "Camera Harness - Disconnect and Connect" for more information.