Komatsu Forklift Trucks FG28HTLS-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.

Warning: This maintenance check requires trained personnel with PPE!

Check for deformation, cracks or scratches in the rear axle

Check for play of center pin in the rear axle

Check for clearance of thrust in the rear axle

Check for looseness of cap mounting bolt in the rear axle

Check for shaking, pulling or dragging in the steering wheel

Check for steering force (Control force) in the steering wheel

Check for play at engine idle in the steering wheel

Check for interference between wheel and other part of truck in the steering wheel

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

1. Inspect the rollers for excessive wear or damage. Rollers with visible flat spots or cracks should be re- placed.

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

3. Inspect all welds between the carriage side plates and the carriage fork bars. If any welds are cracked, replace the carriage.

4. Inspect the roller stub shafts. If they are damaged or if there are cracks at the base of the stub shafts, the carriage must be replaced or repaired. Contact Komatsu Forklift for repair procedures.

E-MD SERIES FULL FREE LIFT 2-STAGE MAST

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

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

3. Inspect all welds between the carriage side plates and the carriagefork bars. If any welds are cracked, replace the carriage.

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

11.2 PERIODIC INSPECTION AND MAINTENANCE CHECK POINTS

1. Deformation, cracks or wear of fork stopper pin

2. Opening or difference in height of fork tips

1. Cracks or wear of upper and lower hooks

2. Cracks or wear of fork base/root

Check fork base thickness (C) for specified size