Service Parts List

ManualsBrandsMilwaukee ManualsDrillsM18 FUEL ONE-KEY 18-Volt Lithium-Ion Brushless Cordless 1-3/4 in. SDS-MAX Rotary Hammer with One 12.0 Ah Battery

Pack the rear of the piston

with grease. There is to be

no lubrication on the face

of the part.

Place 6-5/16 oz. (180g)

of grease in the bottom

of the gearcase

Place 5/8 oz. (18g) of grease

in the rear of the barrel before

installing the striker

Coat the inside

of the spindle driver

prior to assembly

Coat teeth of

clutch assembly

with grease

Coat o-ring and

o-ring groove prior

to installing o-ring.

With o-ring

installed, coat around

entire side of ram

17h 20

Washer

#20 is to be

located here on

barrel #17h

Fig. 1

Small

hole in

barrel

1. Place washer #20 onto backside of barrel.

2. Place 18 grams of ‘Q2’ grease inside barrel.

3. Coat o-ring groove on ram

and o-ring with grease prior

to installing o-ring on ram.

Coat the assembled ram and

o-ring with grease as shown

below.

4. When placing ram assembly

into barrel, slowly apply

pressure to ram assembly.

5. Push the ram assembly until

rear face is just below small

hole in the barrel. DO NOT

wipe off any excess grease

that oozes out of holes.

No grease on rear

face of ram (striker)

#19a

Washer

#20

LUBRICATION NOTES:

Type ‘Q2’ Grease, No. 49-08-5355

(2.8oz, 80g tube) 3 tubes needed

Prior to reinstalling, clean gear assemblies with

a clean, dry cloth. Lightly coat all individual

parts highlighted here with grease. Apply a

greater amount of grease to all internal and

external gear teeth. Place 18 grams

of grease in the rear of the barrel

prior to inserting the ram. Place the

remaining grease in the

bottom of the gearcase.

Lubrication Note: MILWAUKEE recommends that scheduled maintenance of this Rotary

Hammer include lubrication replacement, and replacement of vital O-rings and gaskets at each

carbon brush change. Doing so will prolong the life of the hammer by reducing wear to gears

and mechanism parts. The carbon brushes and armature commutator in this MILWAUKEE

Rotary Hammer are designed and matched for many hours of reliable performance.

14-46-2718 MAINTENANCE SERVICE KIT

THIS KIT CONTAINS:

1 45-12-5316 Rubber Dust Shield

1 34-60-5316 Retaining Ring

2 34-40-5316 Spindle O-Ring

2 34-60-5319 O-Ring

2 45-06-5317 Turcon Seal

2 34-40-5308 O-Ring

2 42-42-0054 Foam Bushing

1 14-46-0099 Bearing Shield Assembly

1 34-60-0072 Back Press Ring

2 34-60-0078 O-Ring

1 43-44-0012 Rubber Gasket

1 34-40-5309 O-Ring

1 44-90-5319 Spring Ring

3 49-08-5355 ‘Q2’ Grease (2.8oz/80g tube)

FASTENER TORQUE SPECIFICATIONS (IN./LBS.)

SEATING TORQUE

FIG. NO. WHERE USED in/lbs kgf/cm Nm

34 Selector Bracket Clamp Plate 11 13 1.3

38 Gearcase Cover 63 73 7.2

47 Motor Housing 56 65 6.4

48d Housing Halve Cover 25 29 2.9

48c Housing Halve Cover 11 13 1.3

50b Coin Cell Cover 2.6 3.05 0.3

39h Selector Knob 16 18 1.8

39h On-O󰀨 Switch 11 13 1.3

Switch Termination Screws 8 10 1.0

Ground Screw-Gearcase 44 50 5.0

NOTE:

Be sure that the shank of the bit is clean.

For best performance, be sure the shank

is lightly greased prior to installation.

Use Bit Grease No. 50-08-5317.