ALLIS-CHALMERS
Paragraphs 332-334
1.
Lift arm
2.
Lift shaft
3.
Shaft bracket
4.
Left
Bide
ram hose
5.
Pump adapter
6.
Risht side ram hose
7.
Ram support
8.
Ram bottom cap
9.
Ram cylinder
10.
Snap rine
11.
Bushing
12.
Guide
13.
Packing
14.
Gland nut
16.
Plunder
16.
Snap ring
17.
L. H.
&
R. H. crank
18.
Bushinsr
19.
"O"
Ting
seal
20.
Swivel connection
16
fig,
AC176-Models WD and WD4S hydraulic power lift ram (cylinder) and lift (rock) shaft. Bleed
hydraulic system by loosening packing gland nut (14) when the rams are fully extended.
Method of adjustment is as follows:
Lock out drawbar control by tight-
ening the lockout screw (A) in lock-
out arm on pump, loosen drawbar
clamp and make sure pump regulat-
ing spring has correct 3/16 inch pre-
load as in preceding paragraph, 330.
Loosen lock nut (8) and lock nut (6)
and back off nut (5) to permit rod (2)
to bottom in arm (1). Now turn nut
(5) in opposite direction until it brings
washer (4) into contact with bracket
11
Fig. ACUr-Model CA pump regulating
spring
adiustment is made with nut (11)
so
OS to preload the spring approximately
3/1&
inch.
Fig, AC179-Model CA hydraulic lift pump
hand control lever. Refer to paragraph
332 lor adiustment procedure,
A. Draft regulating lock-out screw
B.
Control lever lock screw
C. Control valve adjusting screw
D.
Volume control adjusting screw
10
X.
1/32 inch clearanc*
1.
Drawbar support
arm
2.
Regulating rod
3.
Drawbar bracket
9.
Adjusting screw
10.
Link
fig.
ACI78-Mod0f CA hydraulic system drawbar linkage. Refer to paragraph 331 for
od/vsfm«nf procedure.
Fig, AC180-Models WD and WD45 draw
bar control mechanism,
1.
Spring seat 6. Link rod adjuBt-
2.
Spring ment
3.
Spring retainer 7. Link rod stud
4.
Shims 8. Fork pin
5.
Drawbar link rod 9. Control fork
(3).
Relock the lock nut (6). With
hand control lever in **raised'* position,
turn screw (9) until a 1/32 inch clear-
ance (X) is obtained between top of
shank (10) and underside of slotted
head of screw (9).
332.
HANO LEVER LINK. The pur-
pose of this adjustment is to establish
the correct length of the link rod
which connects the hand control lever
to the lever on the pump control hous-
ing. Turn screw (D—^Fig. ACl79) out
until it. contacts the collar on shifter
lever shaft. Lock the drawbar by turn-
ing screw (A) into control housing.
Lock plates (1) and (2) together with
screw (B). Loosen set screw, freeing
link rod (3) and place hand control
lever in down position with point of
screw (B) aligned with upper edge of
hole (4) in valve body. Now rotate
lever (5) downward as far as it will go
and tighten the set screw at upper end
of link rod (3). Turn screw (C) out
until it stops against plug.
Models WD-WD45
334.
PUMP REGULATING SPRING.
The preload of this spring (2—Fig.
AC180) is set at the factory by vary-
95
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