Industrial Machinery Repair Part 2 pot

... guard D. None of the above 20 What is the tension or slack a roller chain is recommended to have? A. 10% slack between centers B. 1 2 inch slack C. 5% slack between centers D. 2% slack between centers 36 ... about to fail. C. of excessive load. D. all of the above. 20 A 20 % increase in bearing load, can result in a % decrease in bearing life. A. 20 B. 100 C. 50 D. 10 Knowledge Area:...

Ngày tải lên: 11/08/2014, 08:22

... 2 2 1 2 (Watch corrosion) 24 Plain, porous metal (oil impregnated) 4 (Lubricant oxidizes) 3 (Friction can be high) 2 2 Sealing essential 2 Plain, rubbing 2 (Up to temp. limit of material) 1 2 ... with special lubricant 2 Seals essential 2 Plain, rubbing(non- metallic) 2 (Up to temp. limit of material) 2 1 2 (Shaft must not corrode) 2 (Seals help) 2 Plain, fluid film...

Ngày tải lên: 11/08/2014, 08:22

... distance F′ = .000 028 4 RN 2 W Forces Couples Primary Primary F′ without counterwts. F ′D without counterwts. 707F′D without counterwts. 141F′ without counterwts. F′ without counterwts. 2F′ without counterwts. 0.5F′ ... Inlet pressure here 2. Is sensed above piston and at pilot valve through orifice in piston. 6. Piston moves up to divert pump output directly to tank. 5. When this pressur...

Ngày tải lên: 11/08/2014, 08:22

... unbalanced hydraulic thrust. The screw Pumps 421 Frequency 1ϫrpm 2 rpm Vane pass (# vanesϫrpm) Recirculation accompanied by some cavitation Velocity Figure 21 .22 Vane pass frequency as smoothly into ... between two teeth begins discharging Helical Spur Herringbone Figure 21 .20 Types of gears used in pumps Steam Traps 437 Figure 22 .5 Thermostatic trap the condensate. In other applicati...

Ngày tải lên: 11/08/2014, 08:22

... 18.0 20 .0 8.0– 12. 0 – 304L 0.03 18.0 20 .0 8.0– 12. 0 – 305 0. 12 17.0–19.0 10.0–13.0 – 308 0.08 19.0 21 .0 10.0– 12. 0 – 309 0 .20 22 .0 24 .0 12. 0–15.0 – 309S 0.08 22 .0 24 .0 12. 0–15.0 – 310 0 .25 24 .0 26 .0 ... 19.0 22 .0 1.5 Si 310S 0.08 24 .0 26 .0 19.0 22 .0 1.5 Si 314 0 .25 23 .0 26 .0 19.0 22 .0 1.5–3.0 Si 316 0.06 16.0–18.0 10.0–14.0 2. 0–3.0 Mo 316L 0.04 16.0–18.0 10.0–...

Ngày tải lên: 11/08/2014, 08:22

... Pitch dia. Figure 14.9 Determining center distance D 1 = first pitch diameter D 2 = second pitch diameter C = D 1 + D 2 2 D 1 = 2C −D 2 D 2 = 2C −D 1 Example: The center distance can be found if the pitch diameters ... = πD N or 3.1416 ×6 48 or 3.1416 8 or p = .3 927 inches Example 2: What is the pitch diameter of a .500" circular-pitch gear with 128 teeth? D = pN π or .5 × 128...

Ngày tải lên: 05/08/2014, 11:20

... the stuffing box (Figure 19.11). 22 Install the lantern ring in its correct location within the gland. Do not force the lantern ring into position (Figure 19. 12) . 23 Tighten up the gland bolts with ... Packing and Seals 27 Clean up the work area and account for all tools before returning them to the tool crib. 28 Inform operations of project status and complete all paperwork. 29 After t...

Ngày tải lên: 05/08/2014, 11:20

... ERAZ61A, ERAZ92A alloys AZ3IB,AZ61A, 0.040 1.0 150–300 2 AZ80A ERAZ61A, ERAZ92A 3/64 1 .2 160– 320 2 ZE10A ERAZ61A, ERAZ92A 1/16 1.6 21 0–400 2 ZK21A ERAZ61A, ERAZ92A 3/ 32 2.4 320 –510 2 AZ63A, AZ81A, A5.19 ... 310 ER310 A5.9 0.045 1 .2 140–310 Type 316 ER316 1/16 1.6 28 0–450 Type 321 ER 321 5/64 2. 0 – Type 347 ER347 3/ 32 2.4 – 7/64 2. 8 – 8 3 .2 – Maintenance Welding 471...

Ngày tải lên: 05/08/2014, 11:20

... cost, 21 Estimating materials, 22 Estimating time, 21 F Fan failures, 27 6 Fan installation, 26 9 Fan laws, 26 7 Fan performance, 26 5 Fans, 25 0, 26 1 Flanged couplings, 21 5 Flexible couplings, 21 8, 23 5 Fluid ... installation, 20 4, 20 6, 21 2 Conveyor performance, 20 3, 20 6, 20 9 Conveyors, 20 3 Coordination, 23 Coupled imbalance, 63 Coupling installation, 23 0...

Ngày tải lên: 05/08/2014, 11:20

... intervals; 2 List all measurement standards; Introduction: Why Use Best Maintenance Repair Practices? 9 ● The maintenance manager needs to conduct monthly spot checks on randomly selected PMs and repairs ... MIL-C-456 62 and provides a good outline in the military standardization handbook MIL-HDBK- 52, Evaluation of Contractor’s Calibration System. The prin- ciples are equally applicable...

Ngày tải lên: 05/08/2014, 11:20