F
OR
M
ODELS
: JGI, JGM, JGN, JGP
AND
JGQ
S
ECTION
2 - I
NSTALLATION
PAGE 2-5
ments not meeting the specified tolerances
6.
Refer to Ariel ER-26, Appendix A in the Ariel Packagers Standard for proper
frame foot and crosshead guide bolt size and torque values.
7.
Standard "wet-sump" compressors must be level within the "Maximum Angle
from Horizontal Allowed without Dry Sump" to the Ariel Packager's Standards,
ER-56.06.
8.
The top-cover-mounting surface should be measured for flatness and/or soft
foot check be done as required:
a.
When setting a new compressor.
b.
After reinstalling a compressor frame.
c.
When loose hold down fasteners are found.
d.
Every 6 months or 4000 hours as recommended maintenance inspection.
9.
The Equipment used for flatness measurements should have a published accu-
racy of 0.0005 inches/foot (0.042 mm/m) over the required distance to measure
the entire length of both frame rails. One example of such equipment is the
"LEVALIGN Flatness application with ROTALIGN PRO" manufactured and sup-
ported by PRUFTECHNIK (www.pruftechnik.com) which can be used to carry
out the flatness inspection outlined above.
10. To check soft foot, the compressor frame hold down bolting is to be properly
installed and tightened. Loosen each hold down bolt individually while checking
the frame foot to skid deflection with a calibrated dial indicator. Correct any hold
down position that deflects more than 0.002 inches (0.05 mm) when released.
Re-torque the hold down bolt and repeat at each frame to skid bolt.
Setting Crosshead Guides
With crosshead guides and cylinders unsupported, prior to bottle installation:
1.
Shim Thickness =
Unsup Deflection
Thicknesses to paragraph
4. above
Crosshead
Guide Foot
Crosshead Guide
Skid Support
(Connected to Skid)
F
IGURE
2-2 C
ROSSHEAD
G
UIDE
F
OOT
TO
S
KID
-S
UPPORT
S
HIM
- T
YPICAL
Measure the clearances
between each cross-
head guide foot and the
guide support. Except for
JGZ:U and KBB:V
frames when equipped
with long two compart-
ment (L2) crosshead
guides, measure clear-
ance at the outboard feet
under the guide exten-
sion, which are used to
support the guide and
the feet under the guide
are to be unsupported.
2.
Completely fill the clear-
ances with shim stock
(reference Figure 2-2).
3.
Tighten the crosshead guide foot (or long two compartment guide extension
foot) to guide support hold-down bolting to full fastener torque. Refer to Ariel ER-
26.
