Powernail 50M FLEX MANUAL POWERNAILER User manual

Read this manual before you use this Nailer. Follow all safety warnings and instructions. If you
are uncertain about the operation of the Nailer, call us directly at 1-800-323-1653 for assistance or
contact the closest Powernail Dealer for help. Please retain this information for future reference.
WARNING
08.11.09
Operation and Maintenance Manual
MODEL 50M FLEX
MANUAL POWERNAILER®
FOR TONGUE AND GROOVE FLOORING 3/8” TO 5/8”
POWERNAIL
®
CO.
1300 Rose Road, Lake Zurich, IL 60047
Phone: [phone]
Website: www.powernail.com
50M FLEX with Adjustable Foot

2
Always wear approved front and side EYE PROTECTION when operating this Nailer.
Others in the work area should also wear front and side EYE PROTECTION. Eye
protection will help guard against fl ying nails and debris, which could cause severe eye
injury.
EAR PROTECTION may be required to prevent hearing damage when there are high
noise levels in the work area.
DO NOT USE THE METAL END OF THE MALLET TO STRIKE THE PLUNGER, use
the rubber capped end only.
Never place any part of the body in the discharge path of the Nailer.
DESCRIPTION
OPERATION
TO PREVENT ACCIDENTAL INJURIES:
The Model 50M FLEX Powernailer® is the latest model designed to bring Powernail
quality to a manual nailer. The Powernailer® Model 50M—designed for use with only
1" , 1-1/4", 1-1/2" and 1-3/4" (18 gage) Powercleats® nails—provides several distinct
advantages.
The Model 50M can nail down 3/8", 1/2", 5/8" and some exotic 3/4" tongue and groove
hardwood fl ooring using the Powernails adjustable FLEX foot. For a superior manual
Nailer, look to the company that has been the industry’s quality leader for over 50
years, POWERNAIL® COMPANY, INC.
WARNING Do not use any nails other than Powernail Powercleats® (18 gage) nails,
which are specifi cally designed for use in the Model 50M Powernailer. Powercleats® (18 gage)
nails are available in 1", 1-1/4", 1-1/2" or 1-3/4" lengths to accommodate 3/8", 1/2", 5/8" and some
exotic 3/4" tongue and groove hardwood fl ooring.
1 Adjust the FLEX foot to a sample of your
fl ooring (see FLEX Foot Adjustment).
2 Make sure fl ooring strips are together
tightly
4 Place nailer on tongued edge of fl ooring
5 Strike the plunger with rubber end of the
mallet
6 The nailer will drive and set the nail at the
correct 45 degree angle
TOOL OPERATION
1 Slide a clip of nails into the end of the nail
channel feed slot.
2 Pull back the black nail pusher past the nails
and let go.
3 Tension is now applied to the nails for use.
LOADING CLEATS
1 Pull back on the black nail pusher knob
and hold.
2 Tilt nailer back until nails slide out of nail
channel.
UNLOADING THE NAILER

ADAPTER FOOT
LOCATING EAR
3
FLEX Foot Adjustment:
Wood varies from one manufacturer to the
next. The diff erent wood profi les may be due
to height and length of the fl ooring tongue
and whether or not there is a nail pocket.
First, loosen the two hex bolts under the
FLEX foot with the Allen Wrench supplied
with the nailer. (Figure 1.)
Next, set the nailer on a sample of your
fl ooring (see Figure 2).
Use the adjustment lever at the back of the
nailer foot to raise or lower the nailer to the
wood.
Match the Adapter Foot Locating Ear so that
it is pointing into the 90° angle created
by the tongue and the top of the wood (see
Figure 3).
For wood with a nail pocket, line up the
Locating Ear so at the top of the nail pocket.
When the adjustment lever is in the correct
position for your wood sample, tighten the
two hex bolts to lock the FLEX foot into
place.
Always check your adjustment with a sample
to ensure the nail is driving into the nail
pocket
Figure 2.
Hex Allen Wrench
FLEX Adjustment Lever
1. Loosen 2 hex screws.
2. Raise or lower the FLEX to your wood sample.
3. Match the Locating Ear to the nail pocket.
4. Tighten 2 hex screws.
5. Test wood sample with new adjustment.
Figure 1.
Figure 3.
Set the nailer on a sample of your fl ooring.
Raise the nailer foot above the tongue
to line up the nail pocket.

4
ITEM # PART NO. DESCRIPTION Qty Req
1 08-50M-00-630 BODY ASSEMBLY 1
2 08-50M-00-150 FOOT 1
3 08-50M-00-380 DRIVING BLADE 1
4 07-50M-00-370 PLUNGER 1
5 08-250-00-450 PLUNGER SPRING 1
6 08-250-00-410 PLUNGER SPRING PIN 1
7 08-250-00-640 ROLLER PIN 1
8 08-250-00-740 1/4-20 X 1-3/4 S.H.C.S. (FOOT) 4
9 08-250-00-750 1/4-20 FLANGE NUT 4
10 09-200-3034 PUSHER SPRING 1
11 09-200-3057 #10-32 X 1/2 F.H.C.S. SLOTTED (PAD) 4
12 09-200-3035 SPOOL SET 1
13 09-50P-3005 ADAPTER FOOT 1
14 09-50P-3008 CHANNEL 1
15 09-50P-3042 GATE 1
16 09-50P-3017 GATE PLATE 1
17 09-50P-3038 SHIM 4
18 09-50P-3037 .200 THICK UHMW PLASTIC PAD 1
19 09-445-29745 #10-32 X 1-1/4 S.H.C.S.(KNOB) 1
20 09-445-29754 #10-32 X 1/2 S.H.C.S. (FOOT) 4
21 09-445-29822 #10-32 x 3/4" S.H.C.S. (GATE) 3
22 09-445-29741 1/8 X 5/8 ROLL PIN 2
23 09-445-29735 NAIL PUSHER 1
24 09-445-29735.2 KNOB 1
25 09-445-29756 STANDOFF 2
26 09-445-29750 #8-32 X 1-1/2 F.H.C.S. 2
27 09-445-29751 #8-32 LOCKNUT 2
28 08-45-00-580 BLADE RETAINER 1
29 08-45-00-610 COTTER PIN 1
30 09-50P-3040 CHANNEL PLATE 1
31 09-50P-3041 #6-32 X 3/8 B.H.C.S 2
54 09-445-29758 1/4 Split Ring Lock Washer (Foot) 4
70 09-50P-3070 FLEX Foot 1
71 09-50P-3071 FLEX Foot Bracket 1
72 09-50P-3072 FLEX Foot Cam 1
73 09-50P-3073 FLEX Foot Cam Plate 1
74 09-50P-3074 FLEX Foot Pad 1
75 09-50P-3075 SHCS 1/4-28 x 1.25" 2
76 09-50P-3076 Washer .281 IDx.62 ODx.051" T 2
77 09-50P-3077 BHCS #10-32 x .50" 2
78 09-50P-3078 1/4 SH DIA x .50" SH. Bolt 1
79 09-50P-3079 Belleville Disc Spring 1
80 09-50P-3080 FLEX Foot Wrench Clip (No longer available) 1
93 09-50P-3090 FLEX Adapter Foot 1
Model 50M FLEX Parts List

5
ITEM # PART NO. DESCRIPTION Qty Req
A-1 AW-200 ALLEN WRENCH SET 1
A-2 09-50M-3065A CHANNEL ASSEMBLY 1
A-3 09-200-3063A NAIL PUSHER ASSEMBLY 1
A-4 08-50M-TU-KIT MODEL 50M TUNE UP KIT 1
A-6 09-445-29801 FLEX 3/16" Allen Wrench 1
Model 50M FLEX Assemblies, Kits & Accessories
71
70 74 11
73
72
79
78 76 75
80
93
54
8
77
For this and other Powernailer schematics, please visit the
Powernail Parts Store at http://www.powernail.com
50M FLEX Schematic

6
TO CLEAR A NAIL JAM:
1. It helps to tap the Driving Blade back to the retracted position before
trying to remove a jammed nail. A spare Driving Blade works best for
this.
2. Try to pull the jammed nail out of the gate with a pair of long nose
pliers. If this does not work remove the four (4) cap screws holding the
Foot, Gate and Nail Channel Assembly together.
3. Separate the Foot and Gate with a screw driver just enough to clear out
the jammed nail.
4. Put thread locking compound on all screws and reassemble the
components.
WARNING Never hit the Nailer with excessive force or with the
metal end of the mallet, this will damage the nailer.
Before each use, check all screws to be sure they are tight. Shock and
vibration can loosen screws. Do not over tighten any screw.

7
1-1/2” 18 GAGE POWERCLEATS®
1-3/4” 18 GAGE POWERCLEATS®
1-1/4” 18 GAGE POWERCLEATS®
1” 18 GAGE POWERCLEATS®
13/16”
15/32”
5/8”
POWERCLEATS LENGTH DETERMINATION CHART

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NEW! The Powernail Toolbox is a large plastic case designed
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Truly a Tinker's TOOL the Powernail Powerjack® allows
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