ASSEMBLY (A REDUCER)
1.
Install ball bearings on the pinion shaft. Be sure the single
row bearings are seated firmly against the shoulders on
the pinion shaft.
2.
Install the square key in the gear shaft and press the gear
into place.
3.
Be sure the gear is centered on the shaft. Install the ball
bearings on each side of the gear. Be sure the bearings
are seated firmly against the gear and the shaft is still
centered.
4.
If the lip seal has been removed during disassembly, place
the gear case halves, gasket faces down, on a surface
which will not mar the face. Put gasket sealer on O.D. of
lip seals. Drive new lip seals into the gear case halves
(lip towards inside of reducer) with a wood block covering
entire lip seal. Drive evenly until the lip seals are flush with
the outer face of the gear case halves.
5.
If steel covers have been removed during disassembly,
install one cover in the bore of the gear case half opposite
the pinion shaft extension. This cover should be flush with
outer edge of case. Install a second cover in the bore of
the gear case half, opposite the gear shaft extension .090
below the surface of the gear case.
NOTE:
Coat the side
of the covers with sealer and drive the cover from the
inside of case towards outside of case.
6.
Apply lubricant to the lip seal sealing surfaces.
7.
Block the gear case, open side up, to provide at least 2”
clearance between the case and the assembly bench.
8.
Make certain the pinion and gear shaft keyways are free
of burrs and sharp edges to prevent damaging the sealing
surfaces in the lip seals.
9.
Take the pinion and gear assemblies, mesh the gear teeth
and insert simultaneously into the gear case half. Rotate
the gear shaft slightly as it is pushed through the lip seal.
Tap the end of pinion shaft and gear shaft with a hard
wood block to seat the bearings in the counterbores.
10.
Place gasket on the gear case. If the gasket is damaged,
discard it and use a new gasket.
11.
Align the gear case half with ends of the pinion and gear
shafts, and carefully pass the other half into place. Rotate
the pinion shaft during assembly. Tap the gear case with a
hard wood block to seat the bearings.
12.
Install the six capscrews and nuts and tighten securely,
alternating around gear case to prevent distortion.
13.
Install drain plug. Be sure the proper amount and type of
lubricant is added. See
"Lubrication" on page 2
.
Item
Name Of Part
Item
Name Of Part
Item
Name Of Part
1
Breather
6
Gear Case Half (Set-2)
11
Gear Shaft
2
Pipe Plug (Set-3)
7
Gasket
12
Pinion & Shaft
3
Capscrew (Set-6)
8
Ball Bearing (Set-4)
13
Lip Seal (Set-2)
4
Nut (Set-6)
9
Gear
14
Cover (Set-2)
5
Dowel Pin (Set-2)
10
Key
FIGURE 6: A SIZE HELICAL GEAR REDUCER EXPLODED VIEW
4
13
8
7
6
1
8
11
10
9
12
5
8
6
13
14
3
2
8
5
14
TSM 1984 | Issue A | Page 4 of 8
© 2019 Viking Pump, Inc. • Cedar Falls, IA
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
© Viking Pump, Inc.
