PL31--15LS2
02/00
Page 3
#45--1982
Grease Gun
PARTS INSPECTION
1. Wash all parts except ball bearings in solvent. Dry and
place on a clean cloth for inspection.
2. Check ball bearings for wear. Bearings should turn
smoothly with no appreciable shake or looseness.
3. Check rotor blades for wear by comparing with a new
blade. Replace if worn more than 1/32” in height.
4. Check motor cylinder for grooves, gouges or pitting.
Honing is permissible, however, never remove more than
about 0.001” or 0.002” of material. Replacement is usual-
ly recommended.
SERVICE NOTE 1:
.001” Clearance
Rotor
Hardwood
Block
Hold the rotor and rear plate assembly vertically (plate
downward) and strike the edge of the plate with a wood block.
This helps seat the threaded components.
Caution!
Begin tightening the rotor screw but do not over-tighten. This
could cause damage to the bearing. Alternately spin the rotor while
tightening the screw until a clearance of approximately 0.001” is achieved.
Rear Plate
Ball
Bearing
Rotor
Screw
Assemble rotor to rear plate/bearing assembly with the rotor’s retaining
screw.
Position and set the rotor as close as possible to the rear plate,
without dragging or rubbing.
a. A good practice is to stone the blade slots and polish the ends with a
medium grit emery cloth.
b. Assemble components making sure the bearing is firmly seated in the
rear plate.
1
SERVICE NOTE 2:
X
X
DRILL POINT
STAMPED
“X”
For Speed Code 4 Models
EXAMPLE:
15LS28
4..
Assemble the planet gears into the planet cage, making sure the notched
planet pins fit over the planet cage washer. Rotate each gear until the
aligning hole — on the end of one gear — is diametrically opposite the
“X”
mark of the other gear. Hold the gears in this position and slip the planet
cage into the internal gear. This is important to avoid “wiping out” the gear
teeth.
This is the only position where the gear teeth are lined up.
TIMING OF THE STEP REDUCTION GEAR ASSEMBLY
2
DOTCO
15LS2.. & 15LN2.. Series
SERVICE NOTES
