Skyjack Telescopic Boom SJ66 T+

Remove the bolt securing the engine tray to the turret

Pull the locking pin down and swing the engine tray away from the turret

Place a suitable container under the fuel filter

Remove the fuel filter and catch any escaping fuel

WARNING! Dispose of fuel in accordance with local and federal regulations

Clean any dirt from the filter carrier sealing surface

Apply a thin layer of oil or diesel fuel to the rubber gasket of the new fuel filter

Install the fuel filter and tighten it by hand, then tighten the filter cartridge with a final half-turn

Locate the GP2 port on the main manifold

Connect a pressure gauge (5000 psi) to the GP2 port

Start the engine from the base control console and let it run for 2-5 minutes

Raise the main boom to ensure the basket will not contact the ground

Fully raise or lower the platform level and check the reading on the gauge

Locate the platform leveling relief valve RV3

Loosen the lock nut on the platform level relief valve RV3. Turn the adjusting stem clockwise to increase the pressure and counterclockwise to decrease the pressure

Tighten the lock nut on the platform level relief valve RV3 once 3000 psi is observed on the gauge. You must fully raise or lower the platform level to activate a pressure reading on the gauge

NOTE! Make sure the charge pump pressure test is completed first

Locate test port TP2 on the drive pump

Connect a pressure gauge (10000 psi) to test port TP2

WARNING! To protect the gauge, do not activate any controls during this procedure

Start the engine from the platform control console

Unplug the brake solenoid power cable on the brake valve

Activate the drive function slowly in reverse with the engine at high speed. The wheels should not turn

NOTE! Activating the drive function too quickly will stall the engine

Check if the oscillating cylinder bolts have missing or damaged torque seal

If more than one bolt is replaced, do so one at a time to prevent the cylinder from shifting

Clean the cylinder’s corresponding internal threaded hole thoroughly

Choose the type of bolt used for replacement

Enter the torque applied to the new bolt

Apply a line of torque seal to each new bolt extending from the bolt head over the washer and to the chassis wall

Sign off on the bolt replacement

Warning: Only trained personnel should perform this procedure

Oil sample drawn from the reservoir

Oil sample taken when oil is warmed through normal operation

Upload the oil sample test results

Enter the name of the lubrication specialist

Oil sample suitable for continued use

Sign off on the oil sample testing