Heavy Duty Balanced Opposed Compressors - Ariel Corporation
Heavy Duty Balanced Opposed Compressors - Ariel Corporation
Heavy Duty Balanced Opposed Compressors - Ariel Corporation
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
FOR MODELS: JGZ AND JGU SECTION 2 - COMPRESSOR INSTALLATION<br />
TABLE 2-1 Maximum Angle from a Horizontal Plane for Leveling <strong>Compressors</strong><br />
Frame<br />
Maximum Angle from a Horizontal Plane - In/Ft of Distance (mm/m) [ ° ]<br />
1 or 2 Throw 4 Throw 6 Throw<br />
Length Width Length Width Length Width<br />
JGV N/A 0.235 (20) [1.1°] 0.075 (6.2) [0.4°] 0.150 (12) [0.7°] 0.075 (6.2) [0.4°]<br />
KBB:V N/A 0.165 (14) [0.8°] 0.500 (42) [2.4°] 0.120 (10) [0.6°] 0.500 (42) [2.4°]<br />
Aligning Main Bearing Bores<br />
To maximize main bearing life expectancy and help avoid crankshaft failures, it is essential<br />
that compressor frames be installed and remain in position so that main bearing bores can<br />
be maintained in proper alignment. <strong>Ariel</strong> has established this procedure in an effort to facilitate<br />
the proper installation of compressor frames and provide a means of periodic inspection.<br />
1. The top cover mounting surface of an <strong>Ariel</strong> compressor frame is manufactured<br />
in a flat plane to a close tolerance. This surface is also held to a close tolerance<br />
with the main bearing bores and the bottom of the compressor feet. When the<br />
frame feet are supported so that the top-cover-mounting surface is flat "in<br />
plane", the main bearing bores are in alignment.<br />
2. Top-cover-mounting surface flatness or soft foot check may be used for frame<br />
sizes up to and including JGU:Z/2-throw frames to be sure main bearing bores<br />
are in proper alignment, except for the JGI which uses only soft foot.<br />
3. On JGU:Z:B:V:KBB:V/4-throw and /6-throw frames the top plane flatness and<br />
soft foot checks are both required to be sure the main bearing bores are in<br />
proper alignment.<br />
4. Measurements for flatness are to be taken on the top surface of both sides of<br />
the frame rails at each anchor bolt or for frames with pairs of anchor bolts<br />
between each pair of anchor bolts, with top covers and gaskets removed (see<br />
Figure 2-1). Readings between any two adjacent points are to be within 0.002 in.<br />
(0.05 mm). The total accumulated out of plane flatness for proper alignment is to<br />
be within the flatness tolerances listed in Table 2-1.<br />
7/09 PAGE 2 - 3
Change language