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Maintenance—Every 5000 Hours
Continued on next page KR46761,0001397 -19-21DEC16-1/2
Drain and Rell Hydraulic Tank Oil and Clean
Suction Screen
Change original factory ll hydraulic oil after rst 5000
hours. Change every 5000 hours thereafter if using Super
EX 46HN zinc-free hydraulic oil. If using alternative oils,
see Hydraulic Oil. (Section 3-1.)
Perform this service at the 5000-hour interval when
operating in normal conditions. When operating with an
attachment, drain and rell as necessary.
IMPORTANT: Prevent damage to hydraulic system
components. DO NOT run engine without
oil in hydraulic tank.
Avoid machine damage. Mixing different oil
types can degrade lubricant and machine
performance. Oil manufacturers engineer
their oils to meet certain specications and
performance requirements.
Avoid machine damage. This excavator is
factory lled with Super EX 46HN extended
life zinc-free hydraulic oil. Avoid servicing
this excavator with products that do not meet
this specication. If oils have been mixed or if
alternate service oils are desired, the complete
hydraulic system needs to be completely
ushed by an authorized dealer.
1. Park machine on level surface with upperstructure
rotated 90° for easier access. Position machine with
arm cylinder fully retracted and bucket cylinder (if
equipped) fully extended.
IMPORTANT: Turbocharger can be damaged
if procedure to shut down engine is
not done properly.
2. Run engine at slow idle speed without load for 5
minutes.
3. Stop engine.
4. Insert 4 mm hex wrench (2) into hole (3) and turn
counterclockwise to release locking pin.
CAUTION: Avoid personal injury from
high-pressure uid. High-pressure release
of oil from pressurized system can cause
serious burns or penetrating injury. Relieve
pressure by slowly turning hydraulic tank cap
(1) counterclockwise a few degrees.
To prevent possible burn injury from hot
hydraulic oil, wait for hydraulic oil to cool
before starting work.
5. Slowly turn hydraulic tank cap (1) counterclockwise a
few degrees to relieve pressure. Remove cap.
6. Remove cap screws (6).
TS281 —UN—15APR13
Pressurized Fluids
TX1217874 —UN—21JUN16
Hydraulic Tank
1
4
3
2
5
TX1217692 —UN—22JUN16
Hydraulic Tank Cap
1— Hydraulic Tank Cap
2— Hex Wrench
3— Hole
4— Case Assembly
5— Aligning Mark (2 used)
6— Cap Screw (6 used)
7— Hydraulic Tank Cover
7. Remove hydraulic tank cover (7).
3-15-1
112321
PN=257
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