13
10/22 REV 3/23
GB743SHAVT/6NF
If a tool is performing poorly or leaking, a complete overhaul may be necessary.
Perform overhaul in a clean, well lit area using care not to scratch or nick any smooth surface that comes in contact with an o'ring.
Use of Lubriplate® #630
-
AA (Gage Bilt part no. 402723) or equivalent during reassembly to prevent tearing or distorting of o'rings.
1. Disconnect air supply.
2. Disconnect hydraulic coupler
-
male (585047) from power supply, connector
-
female (A
-
578) & connector
-
male (A
-
580) from pump.
3. Remove hydraulic coupler
-
male (585047) from reducer bushing (403431) and drain hydraulic hose (A
-
317) into an approved container.
4. Remove complete nose assembly and extensions from tool.
5. Remove four button head cap screws (402479) separating handle assembly (700343) from head cylinder assembly (743115).
6. Replace o
’
ring (S832) and gasket (704129).
7. Remove end cap (743214) and carefully push piston (743407) out of head cylinder assembly (743115).
8. Using a small blunt object, remove polyseal (A
-
1135) and o
’
ring (400792) from piston (743407) and o
’
rings (S834) and back
-
up
ring (401089) from inside head cylinder assembly (743115).
9. Reassembly sequence is opposite of disassembly. Be sure relative positions of o'rings and back
-
up rings are as shown in
exploded view and part list.
Coat hose fitting threads with a non
-
hardening Teflon® thread compound such as Slic
-
tite® (Gage Bilt part no. 403237). DO NOT USE
TEFLON® TAPE.
NOTE: Apply Vibra
-
tite® pt. #405125 to all nose assembly threads and allow it to set 20 minutes prior to assembly. (See proper
data sheet for further instructions).
OVERHAUL
WARNING
:
Only qualified and trained personnel shall perform overhaul.
WARNING
:
Personnel must read and understand all warnings and cautions.
WARNING
:
Tool must be maintained in a safe working condition at all times and examined on a daily basis for damage or
wear. Any repair must be done by qualified personnel trained on Gage Bilt procedures.
WARNING
:
Disconnect tool from its power source before performing overhaul. Severe personal injury may occur if power
source is not disconnected.
WARNING
:
Excessive contact with hydraulic oil and lubricants must be avoided (See safety data sheet documents for all
applicable materials).
WARNING
:
When operating, repairing or overhauling tool, wear approved eye protection. Do not look in front of tool or rear
of tool when installing fastener.
WARNING:
Use only Gage Bilt hydraulic hoses and couplings, or equivalent, rated for 10,000 psi. (689.48 bar) working pressure.
TOOL DISPOSAL
Note:
•
Dispose of hydraulic oil in accordance with manufacture safety datasheet.
•
All tool materials are recyclable except rubber o
’
rings, seals and wipers.
•
Use of SERVICE KIT (743024), which contains a complete set of o'rings, back
-
up rings and screws, can achieve a
complete overhaul.
1.
When tool life is met, drain hydraulic oil from tool and dispose of the hydraulic oil in accordance with the safety datasheet.
2.
Disassemble tool and remove all rubber o
’
rings, seals, wipers and hydraulic hoses. All tool materials are recyclable except rubber
o
’
rings, seals, wipers and hydraulic hoses. Dispose of rubber materials in accordance with the material safety datasheet.