MacDon PW7 Pick-Up Header - Manual (Page 56)

SECTION 7 – SERVICE
Form 169149 Revision E 50
NOTE: Swath Master units use the 101-1011
(MacDon #184266) orbit motor (ORB ports).
Rake-Up units use 101-1010 (MacDon
#184265) orbit motor (ORB ports). These
motors perform well on most combines. On
combines with less flow capacity the 101-1009
(MacDon #184264) orbit motor (ORB ports)
may be required to increase pickup speed.
A) Hydraulic Motor Installation/Removal
RAKE-UP
Removal:
a) Lower the pickup to the ground shut off
combine and remove key.
b) Remove the two hydraulic lines from the
motor if the motor is being replaced or
repaired. Be sure to have some rags and a
bucket to catch the oil in the hoses.
c) Remove all shields that will interfere with
this procedure.
d) Loosen the setscrew on the motor coupler.
e) Extract the two flange head bolts until they
contact the motor.
f) Proceed to extract the bolts one revolution at
a time until the motor is removed.
g) Remove the two flange head bolts and place
aside.
h) Remove the two ¼” hex head bolts and
thread them into the previously removed
flange head boltholes until they contact the
hub.
i) Rotate each bolt one revolution at a time
until the hub releases.
j) Remove the coupler and hub and / or pulley.
Installation:
a) Install the coupler with hub or pulley onto
the roller shaft. Be sure the coupler
bottoms out with the end of the roller
shaft.
b) Lock into place with the 1/4" bolts and
spring lock washers. When tightening the
1/4" bolts, alternate several times from one
bolt to the other, until both bolts are
equally secure. Return the ¼” flange head
bolts to their original location.
c) Install the hydraulic motor with key into
the hydraulic motor coupler and lock into
place with the setscrews.
SWATHMASTER
Removal:
a) Remove shield. See previous section.
b) Disconnect hoses. Oil will leak from
hoses upon disconnection.
c) Remove v-belt. (See v-belt removal)
d) Remove the ½” bolt, spring lock washer,
retaining washer, and arm extension.
e) Next step is Motor/Sheave removal. There
are two methods of breaking hub away
from the coupler.
I) Large chisel & hammer.
1 Using 7/16” wrench or socket,
remove the two 1/4” bolts and
spring lock washers.
2. Position a 1” or 1 1/4” chisel
between the hub and sheave.
Gently tap alternate sides until hub
comes free. Do not contact the
coupler-damage may occur.
3. Taking hold of the sheave, give a
sharp pull. The motor sheave and