6.4Line up the bushings of the new disc pack with the reamed holes in the ring, lightly tap on the bushings to start them into the holes. Insert 3 disc pack bolts and nuts with the bolt heads in the ring counterbore hole, tighten them evenly to pull the bushing into the ring flange (see Figure 7).

DISK PACK NUT

DISK PACK

BUSHING

ADAPTER RING

SPACER

DISK PACK BOLT

Figure 7. Bolt Disc Pack to Adapter Ring.

6.5Line up the bushings with the spacer reamed holes, lightly tap the bushings to start them in the holes. Install and tighten 3 disc pack bolts and nuts with bolt heads in the ring (see Figure 8).

DISK PACK BOLT

ADAPTER RING

DISC PACK

BUSHING

SPACER

DISC PACK NUT

Figure 8. Bolt Disc Pack to Spacer.

6.6Torque all disc pack fasteners evenly and in successive steps to the value specified in Table 2.

Coupling

Tightening Torque (Lightly Oiled)

KD2

 

 

KD20

Size

 

 

 

ft-lb

 

N-m

ft-lb

 

N-m

103

8

 

10

--

 

--

153

30

 

40

--

 

--

203, 204

50

 

70

55

 

75

253, 254

75

 

100

55

 

75

303, 304

120

 

160

115

 

160

353, 354

190

 

260

175

 

240

403, 404

290

 

390

280

 

380

453, 454

320

 

430

280

 

380

504

--

 

--

420

 

570

554

--

 

--

730

 

1000

604

--

 

--

1020

 

1400

705

--

 

--

1800

 

2450

805

--

 

--

2300

 

3100

905

--

 

--

2300

 

3100

Table 2. Disc Pack Bolt Tightening Torques.

KD20

6.7Remove the center assembly in reverse order as per the applicable assembly procedure.

6.8Unbolt the adapter ring from the disc pack. Unbolt the disc pack from the spacer.

6.9Clean and deburr all of the coupling parts.

6.10Line up the new disc pack between the adapter ring and the spacer. Insert the disc pack bolt into the counterbored hole in the adapter ring, and through the disc pack.

6.11Make sure that the spacer is properly indexed for the large clear- ance holes to receive the bolt ends. Place the spacing washer and disc pack nut on the bolt. Repeat for the other bolts (see Figure 9).

DISC PACK NUT

SPACING WASHER

DISC PACK

ADAPTER RING

SPACER

DISC PACK BOLT

Figure 9. Bolt Disc Pack to Adapter Ring.

6.12Place a spacing washer over a disc pack bolt. Insert the bolt through the large hole in the adapter ring and through the disc pack bushing and reamed hole in the spacer. Place the disc pack nut on the bolt. Repeat for the other bolts (see Figure 10).

ADAPTER RING

SPACING WASHER

DISC PACK

DISC PACK NUT

SPACER

DISC PACK BOLT

Figure 10. Bolt Disc Pack to Spacer.

6.13Torque all disc pack fasteners evenly in successive steps to the value specified in Table 2.

7.0Dynamic Balance

Balanced parts will be marked with the letter “B.” The couplings may be component balanced (hubs and center assembly) with no match marks, or assembly balanced as a complete coupling with match marks of the hub to ring connections. If the coupling is supplied with match marks, it must be assembled with the match marks in line.

Note: For balanced couplings, disconnecting the disc packs from the cen- ter assemblies disturbs the balance of the coupling. When disc packs are replaced in balanced couplings, the couplings must be balanced before placing back in operation.

8.0Finish Boring and Keyways

Coupling hubs are often furnished with a “rough stock bore.” This rough bore is not necessarily concentric to other hub diameters. To prepare for boring, set-up and indicate the hub as shown in Figure 11.

Disconnect all power before adjusting units

© Emerson Power Transmission Manufacturing, L. P. or affiliates 2002. All Rights Reserved.

Page 3
Image 3
Emerson installation instructions KD20, Dynamic Balance, Finish Boring and Keyways

KD2, KD20 specifications

The Emerson KD20 and KD2 series represent cutting-edge advancements in the realm of process automation and control, particularly for industrial applications. These controllers are designed to provide exceptional performance and versatility, catering to various needs across sectors such as manufacturing, energy, and environmental management.

The Emerson KD20 is engineered for comprehensive data acquisition and control, offering a wide array of features that enhance operational efficiency. One of its standout characteristics is its advanced user interface, which includes a high-resolution display and intuitive navigation. This facilitates easy monitoring and adjustment of parameters in real-time, enabling operators to respond swiftly to changes in process conditions.

In terms of connectivity, the KD20 is equipped with multiple communication protocols, such as Modbus, Profibus, and Ethernet, ensuring seamless integration into existing systems. This flexibility allows the KD20 to communicate effectively with a range of devices, from sensors and actuators to higher-level management systems, fostering a connected and intelligent operational environment.

The KD2, while similar in many aspects, offers more compact dimensions and is tailored for applications where space conservation is critical. It retains the essential features of the KD20 but prioritizes simplicity and efficiency, making it ideal for smaller setups or less complex processes. Its robust construction ensures reliability in demanding environments, withstanding temperature fluctuations and other challenging conditions.

Both models utilize Emerson’s proprietary control algorithms, which incorporate advanced methodologies like PID control and adaptive tuning. These algorithms optimize process control, ensuring consistency and accuracy in output, which is crucial for maintaining product quality and minimizing waste.

Furthermore, the KD series includes advanced diagnostic capabilities that provide valuable insights into system performance. These diagnostic tools help in predictive maintenance by identifying issues before they escalate, thereby reducing downtime and operational costs.

In summary, the Emerson KD20 and KD2 controllers combine sophisticated technology with user-friendly design, presenting powerful solutions for modern industrial automation. Their advanced features, robust construction, and flexible connectivity options make them essential tools for enhancing efficiency, reliability, and overall productivity in a wide array of applications.