Komatsu Forklift Trucks FG15ST-16

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.

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

After each 100 hours of lift truck operation, and in addition to the daily inspection:

1. Inspect and lubricate the full length of the chains with SAE 40 wt. oil or Bowman Heavy Load Red Grease.

CAUTION: The chains must be coated with a film of lubricant at all times.

E-MD SERIES FULL FREE LIFT 2-STAGE MAST

After each 100 hours of lift truck operation, and in addition tothe daily inspection:

1. Inspect and lubricate the full length of the chains with SAE 40 wt. oil or Bowman Heavy Load Red Grease.

CAUTION: The chains must be coated with a film of lubricant at all times.

E-MT SERIES FULL FREE LIFT 3-STAGE MAST

8.2 PERIODIC INSPECTION AND MAINTENANCE CHECK POINTS

1. Deformation, cracks or scratches: Check visually

Adjustment: If 2.0 mm or over, adjust with shims to less than 0.5 mm.

Tightening torque for mounting bolt (1).

4. Looseness of cap mounting bolt

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

After each 500 hours of lift truck operation, and in addition to the Daily and 100 Hour Inspection:

1. Each pair of load rollers on the uprights and carriage should be shimmed so that a total side to side clearance no greater than 1/16 in. (1.5 mm) occurs at the tightest point throughout the travel of the member. Pry between the upright and load roller so that the opposite load roller is tight against the upright.

Measure the clearance for the pair of rollers at XXX shown. See Figure 10a.

2. Check the chains for wear and stretch. Refer to Section 5.6-1 for complete chain inspection.

E-MD SERIES FULL FREE LIFT 2-STAGE MAST

After each 500 hours of lift truck operation, and in addition to the Daily and 100 Hour Inspection:

1. Each pair of load rollers on the uprights and carriage should be shimmed so that a total side to side clearance no greater than 1/16 in. (1.5 mm) occurs at the tightest point throughout the travel of the member. Pry between the upright and load roller so that the opposite load roller is tight against the upright.

Measure the clearance for the pair of rollers at XXX shown. See Figure 16.

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.