Genie Compact Telehandler GTH-636

Perform the following maintenance procedures

Visual Inspection of the Hydraulic Oil

Does the hydraulic oil pass all inspections?

If the hydraulic oil fails any inspection, describe the issue

Test or replace the hydraulic oil if it fails inspection

Replace all hydraulic filters when replacing the hydraulic oil

Was the hydraulic oil replaced?

Refer to Specifications, Engine Operator and Maintenance Manuals

Ensure all tools and replacement parts are available before starting the procedure

Replace the V-rib belt and tensioning pulley

Replace the spark plug of the DPF burner

Clean and test the aftercooler core

Adjust the Boom Sequencing Chains - GTH-636 and GTH-844

Raise the boom to the horizontal position

Extend the boom fully, then retract the boom approximately 1 inch / 25 mm

Estimate the center on either side of the middle boom section and place one end of a tape measure on the top surface of the boom directly above the estimated center

Select a reference point on the sequencing chain and measure the distance between the chain and the top surface of the boom (Measurement 1)

Move to the fork end of the same boom section and measure the distance between the top surface of the boom and the same reference point used on the sequencing chain (Measurement 2)

Result of measurement comparison

Locate the adjustable chain anchor on the top of the boom section at the fork end

Fully lower the tips of the lifting forks

Remove the cover from the fork end of the boom

Inspect the fork level and/or auxiliary hydraulic hoses for proper tension

Do the hoses rest on the boom tube or have an unequal amount of droop?

Refer to the appropriate Service and Repair Manual for repair procedure, How to Adjust the Fork Level and Auxiliary Hydraulic Hose Tension

Park the machine on a firm level surface, level the boom and engage the parking brake

Inspect the chains for elongation

Measure 16 pitches of the extend chain for machines using BL666 chain

Is the distance 12.36 inches / 313 mm or less for BL666 chain?

Measure the pitch of the boom extend chains (boom lower section) for GTH-1256 and GTH-1544 models

Measure the pitch of the boom retract chains (boom upper section) for GTH-1544 model