G-Force GFQ8000 QL80 Shank

Features:

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	G8001
2	Back Head O-Ring	G8002
3	Choke
4	Air Check Valve	G8004
5	Air Check Valve Spring	G8005
6	Make-Up Rubber (Buffering)	G8006
7	Air Guide	G8007
8	Air Distributor	G8008
9	Air Distributor O-Ring	G8009
10	Cylinder	G8010
11	Cylinder Stop Ring	G8011
12	Wear Sleeve	G8QL8012
13	Piston	G8QL8013
14	Piston Stop Ring	G8QL8014
15	Bit Bearing O-Ring	G8QL8015
16	Bit Bearing	G8QL8016
17	Bit Retaining O-Ring	G8QL8017
18	Bit Retaining Ring	G8QL8018
19	Chuck (Drive Sub)	G8QL8019
	Choke Plug Kit	G8029
	O-Ring Kit	G8030

Specifications

Length (w/o drill bit)	53.5"
Outside Diameter	7.08"
Weight (w/o bit)	366.7 lbs.
Cylinder Bore	5.984"
Piston O.D.	5.98"
Piston Stroke	4.13"
Piston Weight	95.8 lbs.
Hole Sizes	7 7/8" - 10"
Air Pressure Consumption	100 psi - 350 psi
Wrench Size	A/F 5.512"
Connection	Std. 4 1/2" API Reg Pin

Air Consumption Chart

PSI	150	200	250	300	350	400
CFM with blank choke	450	530	850	1,080	1,320	1,500
with 1/8" choke	375	595	760	925	1,060	1,205
with 1/4" choke	425	665	845	1,095	1,270	1,350

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	5.984"	greater than or equal to 0.010"
Piston OD	B	5.98"	greater than or equal to 0.010"

Inner Cylinder / Piston Clearance

Part	New Dimension		Discard Clearance
Cylinder ID	C	5.197"	greater than or equal to 0.010"
Piston OD	D	5.192"	greater than or equal to 0.010"

Distributor Probe / Piston ID Clearance

Part	New Dimension		Discard Clearance
Distributor Probe OD	F	1.803"	greater than or equal to 0.010"
Piston ID	E	1.811"	greater than or equal to 0.010"

External Wear

Description	Wear Limit
Wear Sleeve Reverse Dimension	6.811"
Wear Sleeve Discard Dimension	6.693"
NOTE: If no evidence of significant air pressure drop or if wear sleeve is wearing evenly on the top and bottom end, recommendation is to not reverse wear sleeve. 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 - 2500 lbs.

Maximum @ 350 psi - 6500 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.