Komatsu Forklift Trucks FG20T-16

CAUTION: The factory-set adjustments may not be correct for your truck.

Inspect all chains for lubrication.

Inspect all chains for any visible damage.

Inspect the main lift chain adjustment for proper tension and upright position.

Inspect the free lift chain adjustment for proper tension and carriage position.

Inspect for lubrication in the Mast upright channels.

Sign off on the mast inspection

12. MASTS E-MS SERIES LIMITED FREE LIFT 2-STAGE MAST

1. Inspect the load rollers for excessive wear or damage. Rollers with visible flat spots or cracks should be replaced. See Figure 25a.

2. Inspect the load roller bearings by turning the rollers on their shafts. Rollers with roughness or noticeable restrictions to turning should be replaced.

3. Inspect the load roller stub shafts. If they are damaged or have cracks at the base, the upright mast must be re- placed or repaired.

4. Inspect the outer upright thrust plugs. If the wear surface is worn to less than 1/16 in. (1.5 mm), they should be replaced.

5. Inspect the hoist chains as described in Section 5.6-1.

E-MD SERIES FULL FREE LIFT 2-STAGE MAST

1. Inspect the load rollers for excessive wear or damage. Rollers with visible flat spots or cracks should be replaced. See Figure 39.

2. Inspect the load roller bearings by turning the rollers on their shafts. Rollers with roughness or noticeable restrictions to turning should be replaced.

7.2 PERIODIC INSPECTION AND MAINTENANCE CHECK POINTS

1. Abnormal noise when traveling

2. Oil level in differential casing

3. Dirt or stain with oil (see “DIFFERENTIAL TORQUES AND SEALS” on page 7-19 for checking oil level and replacing).

4. Oil leakage from differential casing

1. Deformation, cracks or scratches: Visual check on and around the frame and mounting bolt or welded area

2. Looseness of mounting bolt: Tightening torque ofmounting bolt

5.1.3 TORQUE CONVERTER ASSEMBLY

See drawing of “TORQUE CONVERTER ASSEMBLY” on page 5-4 for structure, which consists of following elements.

• Power Joint (Input Plate, Turbine Hub)

• Relief Valve (Main, Torque Converter Inlet Port, Lubrication)

12. MASTS E-MS SERIES LIMITED FREE LIFT 2-STAGE MAST

Perform the following at the beginning of each work shift:

1. Extend the carriage a few inches off the ground and make sure the chains are under equal tension. Refer to Section 5.6-3 for chain adjustment.

2. Extend the mast to its fullest height to make sure the mast rails and carriage extend freely without binding.

3. While the mast is extended, inspect the upright rails for proper lubrication. Refer to Section 2.4-3 for rail lubrication.

4. Make sure the internal reeving hoses (if equipped) travel evenly in the hose guides. Adjust the hose ends if required. Tighten the fittings making sure they do not twist.

E-MD SERIES FULL FREE LIFT 2-STAGE MAST

Perform the following at the beginning of each work shift:

1. Extend the carriage a few inches off the ground and make sure the chains are under equal tension. Refer to Section 5.6-3 and 5.6-4 for chain adjustment.