Table 28 Grapple Frequent Inspection
Inspect for: | How often: |
Structural members for: | |
* Deformation. | * Normal service - Monthly. |
* Cracks. | * Heavy service - Weekly to monthly. |
* Excessive wear on any part of the grapple. | * Severe service - Daily to weekly. |
Pins and bushings. | " Special or infrequent service - As recommended by a qualified person before and after each occurrence. |
Hydraulic lines. | |
Hydraulic cylinders. | " Before using, when a grapple has been idle for more than one month. |
Loose bolts. | |
Electrical conductors that are visible without disassembly. |
Note: | * Normal service means service that involves operation with various weights within the rated load limit, averaging less than 65% of rated load limits. |
* Heavy service means service that involves operation within the rated load limit, that exceeds the limits of normal service. | |
* Severe service means service that involves normal or heavy service with abnormal operating conditions. |
Table 29 Grapple Periodic Inspection
Inspect for: | How often: |
Members, fasteners, and lifting parts for: | |
* Deformation. " Wear. | * Normal service for equipment in place - Yearly. |
* Corrosion. | * Heavy service, unless external conditions indicate that disassembly should be done to permit detailed inspection - Quarterly. |
Hydraulic hose, fittings, and tubing for: | |
* Evidence of leakage at the surface of the hose or its junction with metal couplings. | * Severe service - Monthly. |
* Blistering or abnormal deformation of the outer covering of the hose. | * Special or infrequent service - As recommended by a qualified person before the first occurrence and as directed by the qualified person for any subsequent occurrences. |
* Leakage at threaded or clamped joints that cannot be eliminated by normal tightening or recommended procedures. | |
* Excessive abrasion or scrubbing on the outer surface of hoses, rigid tubes, or fittings. | |
Hydraulic motors for: | |
* Loose bolts or fasteners. | |
* Leaks at joints between sections. | |
* Shaft seal leaks. | |
* Unusual noises or vibration. | |
* Loss of operating speed. | |
* Excessive heating of the fluid. | |
* Loss of pressure. | |
Hydraulic cylinders for: | |
* Drifting caused by fluid leaking across the piston seals. | |
* Rod seal leakage. | |
* Leaks at welded joints. | |
* Scored, nicked, or dented cylinder rods. | |
* Dented case (barrel). | |
* Loose or deformed rod eyes or connecting joints. | |
All electrical components, including meters, indicators and alarms for: " Proper operation. " Condition. |
Wash. Admin. Code § 296-155-34025
Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060 and chapter 49.17 RCW, and 29 C.F.R. 1926, Subpart CC. 13-02-068, § 296-155-34025, filed 12/31/12, effective 2/1/13.