Great Plains DVN8324 Assembly Manual - Manual (Page 22)

18 8315-8324DVN Great Plains Manufacturing, Inc.
550-466Q-ENG 11/25/2013
Refer to Figure 14
Install Hydraulic Valves
74. Align holes in depth control valve to top of depth stop
valve mounting bracket using 5/16 x 2 hex bolts and 5/
16 lock washers.
75. Slide one end of (with 2 holes) depth stop tube
through slotted hole in depth stop valve mounting
bracket. Slide other end of depth stop tube
over peg
on left side of level bar, secure with 1/2 flat washer
and 1/8 x 1 cotter pin
.
76. Bolt depth stop screw assembly to front of depth stop
tube with 1/2 x 2 1/2 hex bolts , 1/2 lock washers
and 1/2 nuts.
77. Position rebound bracket on front side of center frame
tube (to right of level bar mount assembly. Align holes in
rebound mount plate
with holes on rebound bracket
(back side of side of center frame tube, secure with 1/2 x
4 1/2 hex bolts
, 1/2 lock washers and 1/2 nuts.
78. Mount rebound valve in position shown, with 5/16 x 4
hex bolts , 5/16 lock washers and 5/16 nuts.
79. Tighten rest of bolts to specs and bend cotter pin.
Note: Install all hydraulic fittings as shown in steps below.
See hydraulic layouts in “Operator’s Manual for proper
hose routing.
Refer to Figure 15
Install Rebound Valve and O-Ring Fittings
80. Thread straight (non- adjustable stud) fittings into
ports V1, V2 and C2 of rebound valve .
Note: Tighten as shown below. Do not over tighten as this
could cause damage to valves.
a. Inspect all components for damage or contamination
during shipping.
b. Lubricate o-ring and threads on fitting.
c. Turn fitting into port until finger tight, See “Hydraulic
Connectors and Torque” on page 38 or proper torque
value.
81. Thread elbow (adjustable stud) fitting2 into port C1 of
rebound valve .
a. Follow steps a and b from the foregoing instructions,
then proceed with the following steps below.
b.Looking from fitting from end with nut/washer/o-ring
assembly, turn nut clockwise as far as possible.
c.Using wrench, turn fitting into port until the washer
touches the port spot face. Continue turning fitting until washer touches thread nearest wrench pad.
d. Back off fitting counterclockwise not exceeding one
revolution until it is oriented in the correct position. e. Place wrench on the wrench pad of fitting to prevent
fitting from turning, and See “Torque Values Chart”
on page 37 for proper torque value.
Figure 14
Hydraulic Valve Assembly
41578
U
D
F
B
L
R
8
9
6
2
7
3
4
1
10
5
10
11
12
2
1
2
3
3
4
5
6
3 7
8
9 8
10
11
12
Figure 15
Rebound Valve Fittings
42193
U
D
F
B
L
R
2
3
1
3
3
1
2
1