G-Force Nova GFNM10000 SD10 Shank

Hammer Specifications - G-Force Nova SD10 Shank

Features:

No foot valve required
Easy to service
Special heat-treated alloy piston for long life, Rockwell hardness 60
Minimum loss of performance when injecting foam or water

Item #	Description	Part #
1	Back Head	GFN10001
2	Back Head Washer	GFN10002
3	Back Head O-ring	GFN10003
4	Air Check Valve	GFN10004
5	Air Check Valve Spring	GFN10005
6	Make-up Rubber	GFN10006
7	Air Guide Plug (Choke)	GFN10007
8	Air Guide	GFN10008
9	Air Guide O-ring	GFN10009
10	Air Distributor	GFN10010
11	Air Distributor O-ring	GFN10011
12	Cylinder	GFN10012
13	Wear Sleeve	GFN10013
14	Piston	GFN10014
15	Piston Stop Ring (Buffering)	GFN10015
16	Bit Bearing	GFN10016
17	Bit Bearing Stop Ring	GFN10017
18	Bit Bearing O-Ring	GFN10018
19	Bit Retainer	GFN10019
20	Bit Retainer O-ring	GFN10020
21	Chuck Washer	GFN10021
22	Chuck (Drive Sub)	GFN10022

Specifications

Length (w/o drill bit)	62.30"
Outside Diameter	8.86"
Weight (w/o bit)	736.34 lbs.
Cylinder Bore	6.85"
Piston O.D.	6.84"
Piston Stroke	4.1"
Piston Weight	133.6 lbs.
Hole Sizes	10" - 15"
Air Pressure Consumption	100 psi - 350 psi
Wrench Size	A/F 8.07"
Connection	Std. 6 5/8" API Reg Pin

Air Consumption Chart

PSI	100	150	200	250	300	350
CFM with blank choke	400	662	959	1,234	1,520	1,711
with 1/8" choke	400	700	1,000	1,300	1,600	1,800
with 1/4" choke	500	800	1,100	1,400	1,700	1,900

All Hammers come Fitted with Blank Choke located in the Air Check Valve

Click here to download brochure

Hammer Service Log

Wear Sleeve / Piston Clearance

Part	New Dimension		Discard Clearance
Wear Sleeve	A	6.85"	greater than or equal to 0.010"
Piston OD	B	6.84"	greater than or equal to 0.010"

Inner Cylinder / Piston Clearance

Part	New Dimension		Discard Clearance
Cylinder ID	C	5.98"	greater than or equal to 0.010"
Piston OD	D	5.97"	greater than or equal to 0.010"

Distributor Probe / Piston ID Clearance

Part	New Dimension		Discard Clearance
Distributor Probe OD	F	2.19"	greater than or equal to 0.010"
Piston ID	E	2.2"	greater than or equal to 0.010"

External Wear

Description	Wear Limit
Wear Sleeve Discard Dimension	8.26"
NOTE: Chuck should be replaced when wear transfers to wear sleeve.

Lubrication

G-Force Series Hammers are precision-made tools and should be treated as such. Only the highest quality lubrication should be used and a constant flow of oil must be maintained at all times. Recommended lubrication amount 1/3 Pint per 100 cfm per hour.

Recommended Grades of Lubricant

ESSO
MATEX
CASTROL
SHELL
MOBILE

AROX EP 150
RDO 302
RD OIL DP 100
AIR TOOL OIL 2 A 320
ALMO NO. 5

Heavy duty oil is recommended for all year-round use, in particular where air supply to the hammer is at high temperature. If lighter grade oil is required due to very low ambient temperatures, amount of oil being used should be increased by 30 percent.

Recommended Pull Down

Minimum @ 100 psi - 2570 lbs.

Maximum @ 350 psi - 8900 lbs.

Missile Warranty will be voided by the following:

Welding on Wear Sleeve.
Heating Case with a Torch.
Gripping Wrenches across Threads.
Hammering on Casing.