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February 2001
VILTER MANUFACTURING CORPORATION
SECTION 105-R
Replaces
PAGE 26
August 1974
440 VMC COMPRESSORS
CYLINDER LINER AND CAPACITY CONTROL REPLACEMENT PARTS
1200 RPM HIGH STAGE COMPRESSORS
Serial Numbers 3637 and below
ITEM DESCRIPTION NO. REQUIRED PER COMPRESSOR SERIAL NO. PART
NO. OF CYL
2 4 6 8 12 16 FROM THRU NO.
401 thru Cylinder Liner Kit
405 (For Cylinders w/Unloading) 1* 2 4 4 8 8 0 3637 KT033
401 Cylinder Liner Kit
And (For Cylinders w/o Unloading) 2 2 2 4 4 8 0 3637 KT032
402 (For Cylinders w/o Unloading) 1* - - - - - - - - - - 0 3637 KT032
401 Liner, Cylinder 2 4 6 8 12 16 0 3637 A32609A
402 Seal, ‘O’ Ring 2 4 6 8 12 16 0 3637 2176BH
403 Unloader Ring Assembly 1* 2 4 4 8 8 0 3637 A33434A
404 Washer, Unloader Spring 2* 4 8 8 16 16 0 3637 33436A
405 Spring, Unloader Ring 2* 4 8 8 16 16 0 3637 33428A
407 Plate, Suction Valve 2 4 6 8 12 16 0 3637 33422A
408 Spring, Valve (Volute) 8 16 24 32 - - - - 0+ 2049 31915A
408 Spring, Valve (Helical) 8 16 24 32 48 64 2050+ 3289 33803A
408 Spring, Valve (Damped Helical) 8 16 24 32 48 64 3290+ 3637 13556A††
409 Outer Seat, Ammonia or R12 & R22
Discharge Valve (for Volute Springs) 2 4 6 8 - - - - 0+ 2049 Obsolete
409 Outer Seat, Ammonia or R12 & R22
Discharge Valve (for Helical Springs) 2 4 6 8 12 16 2050+ 3289 Obsolete
409 Outer Seat, Ammonia Discharge Valve
(for Damped Helical Springs) 2 4 6 8 12 16 3290+ 3637 33587A††
409 Outer Seat, R12 & R22 Discharge Valve 2 4 6 8 12 16 3290+ 3637 33586A††
(for Damped Helical Springs)
410 thru Piston Kit, Capacity Reduction 1* 1 2 2 4 4 150 3637 KT034
412
410 Piston Ring, Unloader 4* 4 8 8 16 16 150 3637 35278A
411 Piston 1* 1 2 2 4 4 150 3637 31989L
412 Pin, Long Pivot 1* 1 2 2 4 4 150 3637 33250C
413 Complete Capacity Control Mechanism Assy 1* - - - - - - - - - - 150 3637 A33577A
Thru Complete Capacity Control Mechanism Assy - - 1 2 2 4 4 150 3637 A33354A†
420
413 Arm, Yoke Lifting 1* 1 2 2 4 4 150 3637 33338A
414 Yoke Assembly 1* - - - - - - - - - - 150 3637 A33575A
414 Yoke Assembly - - 1 2 2 4 4 150 3637 A33335A
415 Pin,
3
/
8
” x
11
/
16
” long Roll 1* 1 2 2 4 4 150 3637 1193X
416 Pin, Short Pivot 1* 1 2 2 4 4 150 3637 33250B
417 Spring, Unloader Yoke 6* 6 12 12 24 24 150 3637 33686A
418 Yoke Guide Assembly 1* - - - - - - - - - - 150 3637 A33576A
418 Yoke Guide Assembly - - 1 2 2 4 4 150 3637 A33347A
419 Screw,
3
/
8
” x 1” Nylok Cap 2* - - - - - - - - - - 150 3637 1352D
420 Spacer Sleeve 2* - - - - - - - - - - 150 3637 33618A
NOTES:
* These items used on 2 cylinder compressors only when equipped with unloading. For single cylinder unloading, the yoke
assembly (Item 414) and two pins on the yoke guide assembly (Item 418) have drilled and tapped holes to accommodate screws
(Item 419) and spacers (Item 420).
+ All 1200 RPM VMC Compressors equipped with old style 1200 RPM parts
from Serial No. 2050 thru 3289 had helical valve
springs. Below 2050 had volute springs except 829, 831, 1489, 1706, 1707, 1723, 1733 and 1735, which also had helical springs.
Above 3289 and thru 3637 had damped helical springs. Individual springs of each type are available for replacement; however,
discharge valve outer seats to accommodate only the damped helical springs are available obsoleting all other seats. Therefore,
when ordering seats for replacement on models previous to 3290, four damped helical valve springs must also be ordered with
each seat. Damped springs must then be specified for any subsequent spring replacement. It is not essential that this change be
made on all cylinders if made on one. As a means of identification, the regular helical springs are
7
/
16
” long and are constructed
with two dead coils at the end of the spring that is inserted into the hole. The damped springs are
17
/
32
” long and are constructed
with a special coil at one end with a closer winding pitch (not completely closed). If desired, see page 24 for converting to new
style 1200 RPM parts.
† Refer to Home Office for Compressors with Serial Numbers below 150.
†† Also available in Kit KT035, KT036 or KT037. See page 29.