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 wire rope and other lifting equipment before beginning work. ・ Do not stand or pass under the suspended load.

Items to prepare •Wrenches (7 mm, 19 mm, 27 mm, 36 mm) •Eyebolts (M12) × 2 •Shackles (with the required lifting capacity) × 2 •Wire rope (with the required breaking load) •Liftcrane (with the required lifting capacity) •Marking pen •Cap •Plug •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 "Draining Oil from Hydraulic Oil Tank".) [2] Use a wrench (19 mm) to remove the 6 bolts (1), and then remove the under cover (2).

[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).

[6] Use a wrench (19 mm) to remove the 6 bolts (8), and then remove the center cover (9).

[7] Use a wrench (7 mm) to loosen the hose bands (12), and then remove the return hoses (10) and (11). •Use caps to cover the lines to prevent any entry of water, dust or dirt.

[8] Use wrenches (19 mm, 27 mm, 36 mm) to remove the drain hoses (13), (14), (15) and (16). •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.

[9] Use a wrench (36 mm) to remove the drain hoses (17), (18) and (19). •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.

[10]Use a wrench (19 mm) to remove the 5 bolts (24) and 2 washers (20), and then remove the valve upper frame (21). [11]Use a wrench (19 mm) to remove the 6 bolts (22), and then remove the bracket (23).

[12]Use a wrench (30 mm) to remove the 6 bolts (26) and 6 spacers (25) 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 locations where they are and how many.

[13]Use a wrench (19 mm) to remove the 2 bolts (28), and then remove the stay (27).

[14]Install the 2 eyebolts (M12) (29) on the top of the hydraulic oil tank and set the shackles and wire ropes. [15]Hang the 2 shackles with wire ropes (31), then lift up at the 2 tank line sections (30) with the nylon sling. •When lifting, be careful that the level gauge (32) 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 placing the hydraulic oil tank on wood planks. •Thoroughly secure the hydraulic oil tank so that it does not fall down.

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 .