Pages 5-1 thru 5-8 are deleted. Information regarding Operation is contained in TM 5-3820-256-10.
Maintenance
5-4
LUBRICATION AND SERVICE
5-4.1
Preventive Maintenance. The best possible preventive maintenance program is protection of the hydraulic
system from dirt and moisture. Change the filters frequently. Drain the system annually and replace the fluid. Take care
to prevent dirt from entering the system at any point.
5-4.2
Scheduled Maintenance.
a.
Weekly:
(1)
Lubricate all points indicated on a weekly lube interval.
(2)
Check the hydraulic fluid level in the reservoir.
b.
Monthly:
(1)
Lubricate all points indicated on a monthly lube interval.
(2)
Check all accessible hose fittings for tightness.
(3)
Check winch gearcase oil level.
(4) Check rotation gearbox oil level.
(5)
Check control handles for freedom of movement.
c.
Semi-annual:
(1)
Replace the 10 micron return line filter element.
(2)
Check the crane mounting bolts for tightness.
d.
Annual:
(1)
With unit in stowed position, drain the hydraulic system.
(2)
Remove and clean the suction line 100 mesh strainer.
(3)
Refill the reservoir with fresh hydraulic fluid.
(4)
Run the unit, extending the cylinders. With cylinders in the extended position, recheck the fluid level in
the reservoir and add fluid if necessary to make sure there is some reserve in the tank.
(5)
Drain winch and rotation gearboxes and fill to plug level.
5-4.3
Lubrication. Refer to figure 5-4 for lubrication of the crane and hydraulics.
