16
1800 Series Lathe
(G4) W–Z five section selector
(G5) End gear train diagram
Fig. 18
G1
G2
G3
G4
G5
9.5 APRON CONTROLS
In addition to handwheel traverse the carriage can be pow-
er-operated through controls on the front of the apron.
(OL) Lever is moved down for power operation and up
for manual operation.
(A1) Push-pull knob selects power surfacing (cross feed)
when pulled out, sliding feeds are selected when the
knob is pushed in.
(A2) The adjacent push pull knob controls forward or
backward feed direction.
(A3) Lever is pressed downward to engage the lead-
screw nut for thread cutting. To avoid undue wear,
release the nut except when thread cutting. An inter-
lock within the apron prevents inadvertent engage-
ment of levers OL and A3 at the same time.
Note: Do not use headstock lever for reversing
feeds except during left-hand thread cutting; Use
instead, the apron handle (A2).
(A4) Carriage handwheel
(A5) Cross slide handwheel\
(A6) Compound rest handwheel
(A7) Threading dial indicator
(A8) Spindle rotation, forward, stop and reverse: The
forward and reverse rotation of spindle is operated
by starting lever at right side of apron and controlled
by limit switches on the right-side the bedway.
Fig. 19
A1
A2
A3
A4
A5
A6
A7
A8
OL
9.4 THREADS AND FEEDS
Gearbox, thread and feed selectors
All the thread pitches and feeds directly available from the
gearbox are shown on the data plate fitted on the front of
headstock and the positioning control levers are (G1), (G2),
(G3), and (G4).
End gear trains diagram
The end gear train should be arranged as in the
diagram shown on the dataplate (G5) to meet threading
requirements.
Feeds:
Sliding feeds per spindle revolution range from 0.0015 to
0.04 inch (0.04mm to 1.0mm).
Surfacing feeds per spindle revolution range from 0.00075
to 0.02 inch (0.02 to 0.5mm).
Threads & Feeds
Imperial threads:
Kinds / Range
38 Kinds / 2–72 T.P.I.
Metric threads:
40 Kinds / 0.4–14mm
Diametral pitch (D.P.)
worm gear
21 Kinds / 8–44 D.P.
Module pitch (M.P.)
worm gear
18 Kinds / 0.3–3.5 M.P.
Longitudinal feeds
0.04–1.0mm
(0.0015"–0.04")
Cross feeds
0.02–0.5mm
(0.00075"–0.02")
Gearbox Selectors
(G1) A,B,C three section selector
(G2) R,S,T three section selector
(G3) 1–8 eight section selector
Summary of Contents for Elite EGH-1880
Page 45: ...45 EGH 1880 EGH 2180 EGH 21120 DIAL INDICATOR ASSEMBLY 51 1 2 4 3 52 6 5 7 53 8 54 ...
Page 50: ...50 1800 Series Lathe SADDLE ASSEMBLY 54 53 48 49 111 50 52 47 51 49 44 55 56 57 46 47 ...
Page 53: ...53 EGH 1880 EGH 2180 EGH 21120 BED AND SHAFTS ASSEMBLY ...
Page 54: ...54 1800 Series Lathe BED AND SHAFTS ASSEMBLY ...
Page 55: ...55 EGH 1880 EGH 2180 EGH 21120 BED AND SHAFTS ASSEMBLY ...
Page 66: ...66 1800 Series Lathe CABINET AND PANEL EGH 1880 2180 ...
Page 68: ...68 1800 Series Lathe CABINET AND PANEL EGH 21120 ...
Page 74: ...74 1800 Series Lathe BED STOP ASSEMBLY 1 4 2 3 5 6 7 9 10 11 12 8 ...
Page 76: ...76 1800 Series Lathe STATIONARY STEADY 1 2 4 3 5 6 7 2 3 8 10 11 8 9 3 2 8 12 13 1 1 ...
Page 78: ...78 1800 Series Lathe TRAVELING STEADY ASSEMBLY 1 2 2 1 3 4 5 ...
Page 86: ...86 1800 Series Lathe 892254 TAPER ATTACHMENT ASSEMBLY OPTIONAL ...
Page 89: ...89 EGH 1880 EGH 2180 EGH 21120 14 0 WIRING DIAGRAMS EGH 1880 EGH 2180 ELECTRICAL DIAGRAM ...
Page 90: ...90 1800 Series Lathe EGH 21120 ELECTRICAL DIAGRAM ...
Page 91: ...91 EGH 1880 EGH 2180 EGH 21120 NOTES ...
Page 92: ...92 1800 Series Lathe NOTES ...
