JCB Loader 437

If you must raise the lift arm to get access to perform a non-routine maintenance procedure, a lift arm support devices must be used.

Lift arm support devices are supplied with a machine as an option and your machine may not be equippedwith them. Do not attempt to carry out maintenance operations beneath a raised lift arm unless you use the correct lift arm support devices.

Install the Maintenance Struts (If supplied)

1. If necessary, empty the shovel.

2. Make sure that the machine is parked correctly in the straight-ahead position on solid, level ground.

3. Make sure that the park brake is engaged and the transmission is in neutral.

4. Raise the lift arm sufficiently to install the maintenance struts.

5. Run the engine at idle for a few minutes to let the turbocharger cool. Duration: 2–3min

The installation procedure is the opposite of the removal procedure. Additionally do the following steps

1. Use a press to install the new bush and then replace the seal.

2. Install the spacer shims as necessary.;

1. Align the machine square with the attachment.

2. Lower the lift arm until the pivot shaft is below the level of the hooks on the attachment. Refer to Figure 17.

3. Drive the machine slowly forward, stop when the pivot shaft just touches the attachment.

4. Engage the park brake and put the transmission in neutral.

5. Raise the lift arms and engage the pivot shaft into the hooks. Stop the movement as soon as the pivot shaft is engaged.

6.1. Proportional lever control: Move the lever to the left and tilt the Quickhitch fully back.

6.2. Refer to loader control decal in the cab for exact location of button as differ2ent loader control levers are available.

6.3. Multi lever control option: Move the lever to the rear and tilt the Quickhitch fully back.

Park the machine on solid, level ground

Engage the park brake and put the transmission in neutral

If necessary, disconnect the hydraulic hoses

Push and hold the Quickhitch isolator switch

Disengage the locking pins:Refer to Figure 13

Proportional lever control with an auxiliary button: Push the auxiliary 1 button until the locking pins are retracted

Refer to loader control decal in the cab for exact location of button as different loader control levers are available

Multi lever control option: Push the lever until the locking pins are retracted

Release the Quickhitch isolator switch

Make the machine safe with the lift arm lowered. Refer to (PIL 01-03).

Install the articulation strut. Refer to (PIL 06-27).

Isolate the battery from the electrical circuit. Refer to (PIL 33-03).

Use suitable lifting equipment to support the quickhitch.

Disconnect the hydraulic hoses.

Remove the bolts and the pivot pins from both sides of the quickhitch.

Remove the quickhitch from the lift arms.

Check the condition of the bushes and seals.

Replace the bushes and seals if they are damaged or worn.