and drive assembly (pump, magnetic clutch, and right-
Note.
The drive gear shaft will stand up
angle drive).
approximately one-quarter of an inch above the
driven gear shaft due to the oil seal spring. When
through 4-7 for instructions on removal and installation
the spring is compressed during installation of the
of the complete unit. Follow the alphabetical sequence
opposite end cover the gap will be eliminated.
of view for removal and the numerical sequence of
(11) Hold a straightedge diametrically across
views for installation.
Refer to figure 4-8 for
the top of housing (14) so that it touches the housing at
disassembly and assembly of the pump assembly
each side of the drive gear (11) and at the same time
from/to the magnetic clutch and right-angle drive.
presses over the driven gear. Measure the clearance
b. Disassembly. To disassemble the right-angle
between the straightedge and the driven gear with a
drive power take-off, refer to figures 4-10 and 4-11 and
feeler gage. This clearance should be 0.000 to 0.002
proceed as follows.
inch.
(1) Remove drain plug (17) and plug (15) from
(12) Add or remove gaskets as required to
housing (7) and drain lubricating oil from the assembly.
obtain this clearance.
(2) Remove plug (11) from fitting (12) and
(13) Place the wear plate (6) (face down) on the
remove fitting (12) and gasket (13) from plate (14).
housing (14), alining it in accordance with dye marks
(3) Remove six screws and washers (10 and
made during disassembly.
9) securing plate (14) to housing (7). Remove plate (14)
(14) Place packing (10) on the machined
and gasket (8).
surface of the front cover (13). Install four screws (9)
(4) Remove threaded retainer assembly (2)
and tighten screws with a torque wrench to 90 to 110
from housing (7).
foot-pounds torque.
(5) Disconnect retaining ring (1) from gear and
(15) Rotate drive gear shaft. If it cannot be
remove gear (5) from retainer assembly (2).
rotated readily by hand, remove front cover (13) and
(6) Remove bearing (6) from housing (7).
install another gasket (8) between cover and housing.
Bearing (6) is premed into housing (7).
Repeat until driven gear shaft can be freely rotated by
(7) Disconnect retaining ring (4) from retainer
hand.
assembly (2) and remove bearing (3).
4-33. Right-Angle Drive . The right-angle drive is
mounted in the vehicle as an integral part of the pump
4-21
