Great Plains 2007HD Update Installation - Manual (Page 18)

14 NTA607HD or NTA2007HD Table of Contents Index Great Plains Manufacturing, Inc.
166-370M Table of Contents Index 05/25/2011
Dismount Meters
Disconnect Meter Inlet Elbows
Refer to Figure 20 and Figure 21
62. At the meter inlets, loosen each clamp
. Slide it
well onto the elbow . Re-tighten enough to pre-
vent clamp loss. It may be difficult to remove elbows
until the meter is freed in its mounts.
63. Close the meter chute (not shown).
Remove Meters
Pinch / Crush Hazards:
Use a jack or at least two strong people. The meter assembly
weighs up to 78 kg (171 pounds), with chute installed.
Refer to Figure 21 (depicting a meter with chute removed)
64. Loosen the six nuts
that secure the meter to
its mounts . Pull the meter back from the
elbows .
65. With the loose bolts still in place, allow the meter to
drop in the vertical slots of the mount. If it does not
drop, this suggests that the meter vent tubes have
bonded to the vent structure inside the hopper.
66. With the meter freed from the hopper vent structure,
support the full weight of the meter. At each meter,
completely remove six sets (not all shown):
803-014C NUT HEX 3/8-16 PLT
804-013C WASHER LOCK SPRING 3/8 PLT
804-011C WASHER FLAT 3/8 USS PLT
802-155C RHSNB 3/8-16X1 1/4 GR5
These fasteners are replaced by new
1 ⁄
2
in fasteners
at step 158 on page 28.
67. At the rear end of the existing meter mounts ,
remove and save six sets (not shown):
803-020C NUT HEX 1/2-13 PLT
804-015C WASHER LOCK SPRING 1/2 PLT
802-082C HHCS 1/2-13X1 3/4 GR5
and the two:
266-174D METER BOX MOUNT
The mount is not re-used.
Figure 20
Meter Hoses
31149
160 219
124
160
219
Figure 21
Lowering Meter on a Jack
Q0030
124
219
160
176
138
Confined Space and Agricultural Chemical Hazards:
If the meter vents have bonded to the hopper vent structure,
hopper entry may be required to free the connection. Consult
the Operator manual (166-283M) for safe entry procedures.
The hopper may be a low-oxygen environment with risk of
asphyxiation. Dust and chemical residues can be an inhalation
and skin contact hazard, causing irritation, respiratory dis-
tress, illness or death.
176 124
138
219
176
186
185
172
138
177
187
167
138