Grizzly H7679 Operating instructions

H7679 2" Nailer Kit
-12-
H7679 2" Nailer Kit -13-
CLEANING & LUBRICATION
Cleaning
Use a good solvent to clean the nose
assembly of the nailer. Always be sure
that the nailer is dry before using it again.
Do not allow dust, chips, sand, etc. into
the air connectors or into the body of the
nailer; this may result in leaks and dam-
age to the nailer and the air couplings.
Lubricating
Special oil has been included with your
new Grizzly nailer to help maintain its
useful life. Place two to six drops of oil in
the nailer air inlet (as shown in Figure 8)
every 2 hours of continuous use.
Wipe off any excess oil near the nailer
exhaust to avoid dust build-up. When
the oil that was included with the nailer
has been completely used, replace with
Grizzly Model G2820 Pneumatic Tool Oil.
Another option to manual oiling would be
to simply install a lubricator in your air
compressor line. If your air compressor
line already has a lubricator, then regular
lubrication of your nailer will not be neces-
sary. Just make sure there is always oil in
the lubricator.
Figure 8. Lubricating nailer via air inlet.
Never use gasoline or other flamma-
ble liquids to clean this tool. Vapors
in the tool may ignite, causing the
tool to explode. Ignoring this warning
may lead to serious personal injury or
even death!
H7679 PARTS BREAKDOWN
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H7679 2" Nailer Kit
-14-
H7679 2" Nailer Kit -15-
H7679 PARTS LIST
REF PART # DESCRIPTION REF PART # DESCRIPTION
1 PH7679001 BALL (DW=2.5) 44 PH7679044 SEAL COVER
2 PH7679002 COMPRESSED SPRING A 45 PSB38M CAP SCREW M5-.8 X 25
3 PH7679003 SPECIAL BOLT 46 PH7679046 TORSION SPRING
4 PH7679004 COMPRESSED SPRING 47 PH7679047 PIN C4 X 12
5 PH7679005 AIR DEFLECTOR 48 PH7679048 LOCK PIN
6 PSB15M CAP SCREW M5-.8 X 20 49 PH7679049 COMPRESSED SPRING
7 PLW01M LOCK WASHER 5MM 50 PH7679050 SLIP BLOCK
8 PH7679008 CYLINDER COVER 51 PH7679051 SAFETY COVER
9 PH7679009 SEALING WASHER 52 PH7679052 PULL HANDLE
10 PH7679010 O-RING 17 X 2.65 53 PSB110M CAP SCREW M4-.7 X 6
11 PH7679011 COMPRESSED SPRING 54 PH7679054 GUIDE COVER
12 PH7679012 O-RING 33.6 X 2 55 PRP61M ROLL PIN 3 X 12
13 PH7679013 SWITCH VALVE 56 PH7679056 FUNCTION COVER
14 PH7679014 GASKET 57 PH7679057 PLATE HEAD
15 PH7679015 SEALING WASHER 58 PSB16M CAP SCREW M4-.7 X 16
16 PH7679016 O-RING 23.5 X 2 59 PH7679059 GUIDE BLOCK B
17 PH7679017 MAIN PISTON 60 PSB57M CAP SCREW M3-.5 X 6
18 PH7679018 O-RING 48.7 X 2.65 61 PH7679061 CARBON STRIP
19 PH7679019 COLLAR 62 PH7679062 MOVABLE MAGAZINE
20 PH7679020 CYLINDER 63 PSS23M SET SCREW M4-.7 X 10
21 PH7679021 BUMPER 64 PH7679064 PUSHER
22 PH7679022 SEALING WASHER 65 PH7679065 PUSHER PIPE
23 PH7679023 GUN BODY 66 PH7679066 PUSHER SPRING
24 PH7679024 STAND 67 PSB56M CAP SCREW M3-.5 X 10
25 PRP55M ROLL PIN 3 X 27 68 PH7679068 FIXED SEAT
26 PH7679026 COMPRESSED SPRING 69 PH7679069 COMPRESSED SPRING
27 PH7679027 ADJUSTABLE STAND 70 PRP42M ROLL PIN 3 X 20
28 PH7679028 PIN 1.5 X 8 71 PH7679071 FIXED LEVER
29 PH7679029 ADJUSTMENT NUT 72 PSB18M CAP SCREW M4-.7 X 8
30 PH7679030 COMPRESSED SPRING B 73 PH7679073 SUPPORT SEAT
31 PH7679031 SAFETY NOZZLE 74 PH7679074 FIXED MAGAZINE
32 PH7679032 O-RING 7 X 1.5 75 PH7679075 GUIDE BLOCK A
33 PH7679033 VALVE COVER 76 PLN01M LOCK NUT M4-.7
34 PH7679034 SCREW SPRING 77 PSB41M CAP SCREW M4-.7 X 14
35 PH7679035 O-RING 1.9 X 1.1 78 PH7679078 RUBBER HANDLE CASE
36 PH7679036 SWITCH LEVER 79 PH7679079 O-RING 40 X 2.65
37 PH7679037 O-RING 11.2 X 1.6 80 PH7679080 END CAP
38 PH7679038 TRIGGER VALVE SEAT 81 PH7679081 AIR INLET PLUG 1/4" NPT
39 PH7679039 O-RING 13.2 X 1.9 82 PH7679082 CARRYING CASE
40 PH7679040 COMPRESSED SPRING 83 PAW03M HEX WRENCH 3MM
41 PH7679041 TRIGGER 84 PAW04M HEX WRENCH 4MM
42 PH7679042 SAFETY SPACER 85 PH7679085 PISTON REPAIR KIT*
43 PRP64M ROLL PIN 3 X 18
* ITEM NOT SHOWN IN BREAKDOWN
TROUBLESHOOTING
Symptom Possible Cause Solution
Air leaking at trig-
ger valve area.
1. O-rings in trigger valve hous-
ing are damaged.
1. O-rings must be replaced
& operation of safety nose
must be checked.
Air leaking between
housing and hose.
1. Loose screws in housing.
2. Damaged O-ring.
3. Loose air fitting.
1. Tighten screws.
2. Replace O-ring.
3. Tighten air fitting & use tef-
lon tape.
Air leaking between
housing and cap
assembly.
1. Damaged seal. 1. Replace damaged seals.
Tool skips nails
while discharging.
1. Air leaks.
2. Dirt in nose.
3. Dirt or damage prevents nails
from moving freely in maga-
zine.
4. Inadequate air flow to tool.
5. Worn O-ring on piston or lack
of lubrication.
6. Damaged O-rings on trigger
valve.
7. Worn bumper.
8. Cap seal leaking.
1. Tighten screws and fittings.
2. Clean nose.
3. Clean magazine and
inspect/repair damage.
4. Check fitting, hose, com-
pressor & air pressure.
5. Replace piston O-ring.
Lubricate.
6. Replace trigger valve O-
rings.
7. Replace bumper.
8. Replace cap seal.
Tool runs slowly
or has a loss of
power.
1. Nailer is not sufficiently lubri-
cated.
2. Broken spring in cap assem-
bly.
3. Exhaust port in cap is blocked.
1. Lubricate nailer.
2. Replace spring.
3. Clean or replace damaged
internal parts.
Fasteners frequent-
ly jam the nailer.
1. Nails are the wrong size.
2. Nails are bent or dirty.
3. Magazine or nose screws are
loose.
4. Driver or driver guide are worn
or damaged.
1. Use correct nails.
2. Use undamaged, clean
nails.
3. Tighten magazine.
4. Replace worn or damaged
parts.
Nailer does not fire. 1. Nail is jammed in magazine or
discharge area.
2. Piston shaft is damaged.
3. Air pressure too low.
1. Clear nailer magazine or
discharge area.
2. Replace piston shaft.
3. Check/increase air pres-
sure.