CHECKING/REFILLING OIL LEVEL IN SLEWING REDUCTION GEAR CASE

Securely tighten the filler plug after refilling with the oil. If the filler plug falls during the operation, the hot oil spouts out of the pan, causing burns.

Caution

• See “Maintenance 5.1 Use of Lubricating Oil According to Temperature” for which oil to be used.

• Use seal tape, etc. at the thread of the filler plug to stop the oil leak and securely tighten the plug after refilling with the oil.

1. Stop the machine on a level surface.

2. See “Operation 1.6 Machinery Cover” to remove the machinery cover.

3. Remove 2 mounting bolts (2) and then remove the slewing gear cover (1).

4. Remove the oil filler plug (F) in the slewing reduction gear case and put your finger into the hole to check that the oil is sufficient to almost reach the plug hole mouth.

5. If the oil level is low, refill with the gear oil from the plug hole of the filler plug (F).

Notes

Oil shall be refilled until it almost reaches the plug hole mouth.

6. Put in the filler plug (F) and secure it after oil checking/refilling

7. Install the slewing gear cover (1) to the original position and tighten the 2 mounting bolts securely.

8 Install the machinery cover. For detail, see “Operation 1.6 Machinery Cover” .

[5] CHECKING/REFILLING OIL LEVEL IN WINCH REDUCTION GEAR CASE

• For the winch reduction gear case oil, always use "BONNOC M320 (NIPPON OIL EURROPE LIMITED)". When any oil other than as specified is used, that may cause deterioration of the winch brake capacity and result in unforeseen accidnents.

• Before checking the oil level, allow the machine to get cool to the temperature where you can touch the side near the bottom of the winch reduction gear case. Otherwise, when hot oil, just after operations, comes out, it may cause burns.

Caution

Use seal tape, etc. at the thread of the oil level check plug to stop the oil leak and securely tighten the plug after refilling with the oil.

1. Stop the machine on a level surface.

2. Remove the oil level check plug (G) of the winch reduction gear case (1) to check if the oil will come out of the plug hole.

3. If there is not sufficient oil, remove the oil filler plug (F) and pour in gear oil at the plug hole.

Notes

Pour in the gear oil until the oil comes out of the oil level check plug (G).

4. Install the oil level check plug (G) and oil filler plug (F) and securely tighten them after checking and refilling with the oil.

[6] CHECKING/REFILLING OIL LEVEL IN TRAVELLING MOTOR REDUCTION GEAR CASE CAUTION

• See “Maintenance 5.1 Use of Lubricating Oil According to Temperature” for which oil to be used.

• Use seal tape, etc. at the thread of the oil level check plug to stop the oil leak and securely tighten the plug after refilling with the oil.

1. Move the machine forward and backward so that drain plug (P) of the travelling motor reduction gear case will be at the lowest point.

2. Remove the oil level check plug (G) of the travelling motor reduction gear case to check if the oil comes out of the plug hole.

3. If there is not sufficient oil, pour in engine oil at the plug hole (G).

Notes

Pour in the gear oil until the oil comes out of the oil level check plug (G).

4. Install the oil level check plug (G) and drain plug (P) and securely tighten them after checking and refilling with the oil.

• The electrolyte generates combustible gas and presents explosion hazard. Do not bring any fire close to the electrolyte.

• The electrolyte is a hazardous substance. Avoid contact with eyes or skin. Should it come into the contact with eyes or skin, wash the affected area with plenty of water and consult a physician.

• Do not refill the electrolyte above the “Maximum level line”. The fluid leakage can cause fire.

Caution

• Wipe the top of the battery with moistened cloth to keep it clean.

• Distilled water should be refilled before starting the work next day to avoid freezing.

[LEVEL CHECK]

1. Stop the machine on a level surface

2. See “Operation 2.13 Outrigger Set Up Operation” to rotate the outrigger rotary of the “outrigger (3)” and “outrigger (4)” outward.

3. Verify the electrolyte you can see through the side of the battery case from the inspection hole of the machinery cover

Notes

Wipe the battery case clean if it is dirty.

4. Verify that the surface of the electrolyte is at the upper level line (1).

5. When the electrolyte is at the upper level line (1), see “Operation 2.23 Outrigger Stowing Operation” and rotate the outrigger rotary of the “outrigger (3)” and “outrigger (4)” inward and stow

[REFILLING WITH ELECTROLYTE]

If the surface of the electrolyte is not at the maximum level line (1), refill with the distilled water using the following procedure.

1 See “Operation 1.6 Machinery Cover” to remove the machinery cover.

2 Remove the wing nut (4) and remove the rod (5) and battery holder (3).

3 Pull out the battery (6) toward you and remove all the six battery caps (7) and refill with the distilled water to the maximum level line (1)

When detaching or attaching the battery, be careful that positive (+) terminal of it would not touch any metal parts in that zone. Otherwise, battery may spark and/or explode.

Notes

Pour diluted sulfuric acid if you spill the electrolyte.

4. Check the ventilation hole of the battery caps (7). Clean the cap if clogged, and securely tighten the caps.

5 After refilling with the electrolyte, push the battery (6) to the original position and install the battery holder (3) and rod (5) to the original position, and securely tighten the wing nut (4).

6 See “Operation 1.6 Machinery Cover” to install the machinery cover.

[8] CHECKING/CLEANING RECOIL STARTER CAUTION

Clogging of the recoil starter screen may cause engine to over-heat, shortening its useful life. Make sure to check the recoil starter screen and clean it as necessary.

Check the recoil starter screen (1) through inspection hole in machinery cover to make sure that there is no deposit of dust of paper or straw or dead leaves and remove them, if any.

[9] CHECKING/CLEANING ENGINE EXHAUST GAS HOLE

Deposit of dust of paper or straw or dead leaves at engine exhaust hole may constitute cause of fire. Be sure to check and keep the hole clean.

Check the engine exhaust gas hole for deposit of dust, paper, straw or dead leaves and remove them, if any.