Removal and Installation of Hydraulic Oil Tank

Warning ・ Keep away from fire. ・ Bleed off the pressure in the hydraulic oil tank before beginning work. ・ The temperature of the hydraulic oil is high immediately after stopping the engine. Wait until the hydraulic oil temperature has decreased (to 40 ℃ or less) before beginning work.

Caution ・ Be sure to stop the engine before beginning work. ・ Be sure to inspect the nylon sling and other lifting equipment before beginning work. ・ Do not go under the suspended load.

Items to prepare •Wrenches (7 mm, 19 mm, 22 mm, 27 mm, 36 mm) •Eyebolts (M12) x 2 •Shackle (with the required lifting capacity) x 2 •Wire rope (with the required breaking load) •Crane (with the required lifting capacity) •Marking pen •Caps •Plugs •Waste oil can •Rag •Cleaning fluid •Wood planks, etc. 1.Removal of Hydraulic Oil Tank [1] Drain the oil from the hydraulic oil tank. (For details, see "Drauning Oil from Hydraulic Oil Tank".) [2] Use a wrench (19 mm) to remove the 6 bolts (1), and then remove the under cover (2).

1 Bolt 2 Under cover

[3] Prepare a waste oil can (3) under the hydraulic oil tank.

[4] Use a wrench (7 mm) to loosen the hose bands (4), and then remove the hose (5). •Use caps to cover the hose to prevent any entry of water, dust or dirt.

[5] Use a wrench (19 mm) to remove the 6 bolts (6), and then remove the center cover (7).

3 Waste oil can 4 Hose band 5 Hose 6 Bolt 7 Center cover

[6] Use a wrench (7 mm) to loosen the hose bands (8), and then remove the drain hoses (9) and (10). •Use caps to cover the lines to prevent any entry of water, dust or dirt.

8 Hose band 9 Hose 10 Hose

[7] Use wrenches (19 mm, 22 mm, 27 mm, 36 mm) to remove the drain hoses. •Mark the hydraulic oil tank and hoses so that the connectors match at the time of assembly. •Attach caps or plugs to the hydraulic oil tank and hoses to prevent any entry of water, dust or dirt. •Clean the hydraulic oil tank and hoses by spraying them with a parts cleaner to prevent scratches and prevent dirt from accumulating on the connectors.

11 Drain hose (use 27 mm wrench) 12 Drain hose (use 27 mm wrench) 13 Drain hose (use 22 mm wrench) 14 Drain hose (use 19 mm wrench) 15 Drain hose (use 19 mm wrench) 16 Drain hose (use 19 mm wrench) 17 Drain hose (use 19 mm wrench) 18 Drain hose (use 19 mm wrench) 19 Drain hose (use 22 mm wrench) 20 Pump drain hose (use 36 mm wrench)

[8] Cut the hose bands on the tank side, and tie the hoses together.

[9] Use a wrench (19 mm) to remove the 6 bolts (21), and then remove the top cover (22) from the hydraulic oil tank.

21 Bolt 22 Cover

[10]Use a wrench (22 mm) to remove the 4 bolts (23) for the L-shaped frame (24) between the control valve and the hydraulic oil tank, and then remove the L-shaped frame.

23 Bolt 24 Frame

[11]Use a wrench (22 mm) to remove the 4 bolts (25) and 4 collars (26) from the bottom of the hydraulic oil tank. •Depending on the machine, there may be height adjustment shims between the tank and the frame. Do not lose them.

Also, mark or write down the location where they are and how many.

[12]Use a wrench (19 mm) to remove the 2 bolts (27) from the fuel tank front cover (tank) (28), and then remove the cover (tank).

25 Bolt 26 Collar 27 Bolt 28 Cover (tank)

[13]Use a wrench (19 mm) to remove the 5 bolts (29) from the fuel tank side cover, and then remove the side cover (30).

[14]Use a wrench (19 mm) to remove the 4 bolts (31), and then remove the side cover (tank) (32).

29 Bolt 30 Side cover 31 Bolt 32 Side cover (tank)

[15]Connect the 2 eyebolts (M12) (33) to the top of the hydraulic oil tank, and then use the shackles (34), wire rope (35) and crane to lift the hydraulic oil tank (36). •When lifting, be careful that the level gauge (37) does not interfere with the frame at the side of the hydraulic oil tank. •Fully tighten the eyebolts, and then loosen them by a half turn.

[16]Thoroughly check that the location is safe before lowering the hydraulic oil tank on wood planks (38). •Thoroughly secure the hydraulic oil tank so that it does not fall down.

33 Eyebolt 34 Shackle 35 Wire rope 36 Hydraulic oil tank 37 Level gauge 38 Wood plank

2.Installation of Hydraulic Oil Tank

To install, perform the reverse of the removal procedure.

For the tightening torque, check the "Bolt tightening torque list" in the Service Text .