MATWELD, INC. PHONE:(270) 444-0085 FAX:(270) 443-6180
Matweld reserves the right to change parts, features, or specifications without notice.
09/09
9
02500 IMPACT WRENCH
HAMMER INSTALLATION:
ALTHOUGH THE HAMMERS ARE IDENTICAL PARTS, THEY MUST BE INSTALLED IN OPPOSING POSI-
TIONS FOR PROPER OPERATION.
THE RELIEF CUT SIDES WILL FACE EACH OTHER WHEN PROPERLY FITTED INSIDE THE HAMMER
FRAME, BUT THE HAMMER PIN NOTCH WILL BE ASSEMBLED 180
o
APART WITH (1) AT THE 12:00
POSITION AND THE OTHER AT THE 6:00 POSITION.
REPAIR TROUBLESHOOTING:
1. IMPACT WRENCH OVERHEATS…
• OPERATE WRENCH ON 10 GPM
2. IMPACT WRENCH SPINS BUT WON’T IMPACT…
• INSPECT FRONT END FOR BROKEN HAMMER PINS OR OTHER BROKEN PARTS.
3. IMPACT WRENCH ONLY WORKS IN ONE DIRECTION…
• CHECK FRONT END FOR BROKEN PARTS
• CHECK REVERSING VALVE FOR TRASH ON ONE OR MORE VALVE PARTS
4. IMPACT WRENCH WORKS SLOW AND HAS LOW POWER…
• CHECK THAT TORQUE ADJUSTMENT VALVE IS SCREWED IN AND
NOT
ADJUSTED ALL THE
WAY OUT.
•CHECK THAT FLOW IS 10 GPM AND SYSTEM PRESSURE IS SET AT 2000 PSI
5. TRIGGER STICKS…
• CHECK FOR DIRT OR CLEARANCE IN TRIGGER HOUSING
• CHECK FOR REVERSE FLOW (PIGTAILS OR QD’S RECENTLY CHANGED)
• CHECK BACK PRESSURE ON RETURN LINE (AT TOOL RETURN SHOULD BE 150 PSI OR
LESS).
6. HYDRAULIC OIL RUNNING OUT OF FRONT END…
• REPLACE FRONT SHAFT SEAL USING PART NO. 01612 SHAFT SEAL KIT.
HAMMER PIN NOTCH @ 6:00
RELIEF
CUT
HAMMER PIN NOTCH @ 12:00
PROPER HAMMER ORIENTATION
RELIEF
CUT
ASSEMBLY FACE TO FACE
