Allied Systems Long Reach BHA Series 설치 유지보수 및 서비스 매뉴얼 - 페이지 20

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6.1 Schedule

Daily:

1. Visually inspect all hoses, fittings, cylinders, and

valves for signs of hydraulic leaks.

2. Visually inspect for external damage or cracks.

100 Hour Maintenance:

1. Complete the above daily checks.

2. Check all hoses and fittings for wear or damage. In-

spect for hydraulic leaks.

3. Check for loose or missing bolts.

GRADE 8 COARSE THREAD

Bolt Size

Lubricated Torque

1/4"

5/16"

3/8"

7/16"

1/2"

9/16"

5/8"

3/4"

7/8"

1-1/8"

1-1/4"

1-3/8"

1-1/2"

SECTION 6 MAINTENANCE

GRADE 5 COARSE THREAD

Bolt Size

Lubricated Torque

11 ft-lbs

1/4"

5/16"

3/8"

7/16"

1/2"

140

9/16"

195

5/8"

340

3/4"

550

7/8"

820

1,160

1-1/8"

1,640

1-1/4"

2,150

1-3/8"

2,850

1-1/2"

Figure 6-1, Torque Specifications

6.2 Torque Specifications

The following torque values are to be used on all fasten-

ers unless otherwise specified.

Lubricated refers to fasteners in the "As Received" condi-

tion, which is normally a light preservative oil coating on

unplated fasteners and no oil coating on plated fasteners.

No special steps are taken to add further lubrication prior

to assembly.

SOCKET HEAD COARSE THREAD

Capscrew Size

7.5 ft-lbs

1/4"

5/16"

3/8"

7/16"

1/2"

9/16"

140

5/8"

240

3/4"

390

7/8"

580

715

1-1/8"

1,010

1-1/4"

1,330

1-3/8"

1,760

1-1/2"

Lubricated Torque

12.5 ft-lbs

115

160

215

385

615

920

1,305

1,840

2,415

3,205

45-053, REV. 5/18