DRIVEN EQUIPMENT FLANGE - Commissioning Manual (Rev 4, 10-6-06) Tp60

DRIVEN EQUIPMENT

FLANGE

Figure 22-6 Peripheral Run-out Measurements

PARALLEL BAR

OUTPUT SHAFT

MEASURE AXIAL GAP

COUPLING ADAPTOR

Figure 22-7 Axial Gap Measurements

PIN GAUGE DISTANCE

DRIVEN EQUIPMENT FLANGE

MACHINED SURFACE

DRIVEN EQUIPMENT

Figure 22-8 Pin Gage Measurements

Figure 22-9 Shim Locations and Equipment Moves

Figure 22-10 Shim Locations

Figure 22-11 Keel Block Layout

KEEL BLOCK

(TOP VIEW) SHIMS

SHIMS

SHIMS BOLTS

BOLTS

BOLTS JACK

SCREW

JACK SCREW

JACK SCREW RETAINING NUT

22.4 Collector Box Alignment (Vertical Exhaust) NOTE

Mounting of the collector box differs for the SWIFTPAC™ configuration.

Refer to PWPS Mechanical Field Assembly drawings XXXX-113-S000D and – S000B.

Refer to Preliminary Alignment information contained in paragraph 22.2.

1. Measure and record both front and rear gaps between the diffuser and collector box in the “as found” blanks of the sign-off section. They must fall within the blueprint (specification) limits. If not, proceed.

2. Measure and record, in the “as found” blanks of the sign-off section, the axial offset of collector box with reference to the diffuser flanges (front and rear). They must fall within the blueprint (specification) limits. If not, proceed.

NOTE

Collector box mounting hardware may be both rods and locking nuts on threaded ends or turnbuckle type devices.

3. Loosen:

A. All the self-locking nuts on the four (4) vertical support rods located at the corners of the collector box.

B. The nuts securing the two (2) thrust rods on either side of the collector box.

C. The hardware on the front side of the collector box securing the bottom of the box to the triangular support plate. This will allow the collector box to be moved into its proper position without restrictions.

4. Disconnect and/or remove anything attached to the collector box that could affect movement during alignment. This includes bleed valve exhaust duct flex lines and 6^th stage spent-air line(s) coming from the engine to either side of the collector box, inside the engine enclosure. Also, disconnect the No. 8 and 9 oil scavenge and pressure sense lines from the rear side of the collector box.

5. Using the six turnbuckles, move the collector box to its proper position. A tape measure or

“go/no-go” gages should be used to verify position. If the “go/no-go” gages are used, two sizes will be required to accommodate the front and rear of the collector box.

NOTE

After each move, check for inadvertent counter-moves that may be caused by thermal distortion of the collector box or blueprint tolerances.

.

6. Equalize the side-to-side (3 o’clock and 9 o’clock) measurements on both front and rear of the collector box.

A. Align the vertical position, both front and rear, so that the gap at 12 o’clock is approximately 0.400-inch larger than the gap at 6 o’clock.

B. Axially position the collector box so that the front side of the box (seal mounting area) is no more that 0.125-inch to the rear of the diffuser front flange (seal mounting area toward the engine).

1) In some cases, as per the NOTE above, the best possible placement may be to “split the difference”. Refer to the numbers recorded on the drawings in the sign-off section for the

“as found” position.

2) Record all final measurements in the “as left” blanks of the sign-off section. Include horizontal dimensions (3 o’clock and 9 o’clock), vertical dimensions (12 o’clock and 6 o’clock) and axial dimensions (front and rear).

3) Tighten all the self-locking nuts on the four vertical support rods located at the corners of the collector box, the nuts securing the two thrust rods on either side of the collector box and the hardware (located on the front side of the collector box) securing the bottom of the collector box to the triangular support plate.

NOTE

The upper self-locking nuts should be snug, not tightened. This is to account for thermal expansion to prevent the support rods from breaking.

C. Recheck all measurements for movement. Re-adjust as necessary.

7. Ensure that there is a minimum gap between the edge of the collector box seals and the bottom of the mating groove per Table 22-1.

NOTE

All seals must be checked.

FRONT SEALS REAR SEALS

12:00 0.55 to 0.75-inch 12:00 0.60 to 0.80-inch

3:00 0.40 to 0.60-inch 3:00 0.40 to 0.60-inch

6:00 0.25 to 0.45-inch 6:00 0.20 to 0.40-inch

9:00 0.40 to 0.60-inch 9:00 0.40 to 0.60-inch

Table 22-1 Collector Box Seal Gap Measurements

A. Proceed as follows:

1) Insert the seals, one at a time, in their proper locations and bottom them out in the mounting groove.

2) With a suitable marker, trace edge of the mounting groove onto the seal.

3) Move the seal out to its mounting position, secure with at least two bolts, and trace the edge of the mounting groove again. Remove the seal and note the distance between the lines.

4) If the distance is too small, remove the seal and grind off the excess material. If the distance is too large, notify PWPS engineering.

8. Install all front and rear collector box seals after ensuring dimensional compliance. Installation must be in the same location as removed.

9. Reconnect the bleed valve exhaust duct flex lines and 6^th stage spent-air line(s) coming from the engine to either side of the collector box, inside the engine enclosure. Also, reconnect the No. 8 and No. 9 oil scavenge and pressure sense lines at the rear side of the collector box.

22.5 Collector Box Alignment (Horizontal Exhaust)

Refer to Preliminary Alignment Information in Paragraph 22.2.

3. Loosen all the self-locking nuts on the four (4) vertical support rods located two front and two rear on the collector box; loosen the nuts securing the four (4) horizontal thrust rods two at the top and two at the bottom of the collector box Loosen three (3) axial tie rods, two securing the mid-section and one at the top of the collector box. This will allow the collector box to be moved into its proper position without restrictions.

4. Disconnect and/or remove anything attached to the collector box which could affect movement during alignment. This includes bleed valve exhaust duct flex lines and 6^th stage spent-air line(s) coming from the engine to either side of the collector box, inside the engine enclosure. Also, disconnect the No. 8 & 9 oil scavenge and pressure sense lines from the rear side of the collector box.

5. Using the six turnbuckles, move the collector box to its proper position. A tape measure or

“go/no-go” gages should be used to verify position. If the “go/no-go” gages are used, two sizes will be required to accommodate the front and rear of the collector box.

NOTE

After each move, check for inadvertent counter-moves that may be caused by thermal distortion of the collector box or blueprint tolerances.

A. Equalize the side-to-side (3 o’clock and 9 o’clock) measurements on both front and rear of the collector box.

B. Align the vertical position, both front and rear, so that the gap at 12 o’clock is approximately 0.400-inch larger than the gap at 6 o’clock.

C. Axially position the collector box so that the front side of the box (seal mounting area) is no more that 0.125-inch to the rear of the diffuser front flange (seal mounting area toward the engine).

1) In some cases, per the NOTE above, the best possible placement may be to “split the difference”. Refer to the numbers recorded on the drawings in the sign-off section for the

“as found” position.

3) Tighten all the self-locking nuts on the four vertical support rods located at the corners of the collector box. Also tighten the nuts securing the two thrust rods on either side of the collector box and the hardware (located on the front side of the collector box) securing the bottom of the collector box to the triangle support plate.

COLLECTOR BOX ALIGNMENT ILLUSTRATIONS ILLUSTRATIONS:

1.

Rear Seal Gap

2.

Vertical Exhaust Collector Box

3.

Horizontal Exhaust Collector Box

Figure 22-12 Seal Gap

SEAL GAP

.12 + .12 AVERAGE ALL

AROUND

M + .40 + .10

X + .10 X

In document Commissioning Manual (Rev 4, 10-6-06) Tp60 (Page 146-157)