Models 48330/48329 (Effective Through Serial Number 299) - Greenlee fairmont H8508 Instruction Manual

Assembly (cont'd)
Hammer Case Components
Note: Grease required for assembly of impact
mechanism = Mobil Grease HP.
1. Apply grease to thrust bearing (43) and work into
needle rollers. Apply light film of grease to thrust
washers (44), stack thrust washers and thrust
bearing properly and place over drive shaft (8).
2. Place spacer (45) over drive shaft (8) with flange
part of spacer up.
Impact Mechanism
1. Before assembly, grease surfaces of hammer frame
(46), hammers (47) hammer pin (48) and anvil (49).
2. Install the two hammers (47) 180° from each other,
into hammer frame (46). Install pins (48) into ham-
mer frame and through the hammers, then slide
assembly onto spline of drive shaft (8).
3. Pack hammer frame (46) center space with grease.
Install anvil (49) into hammer frame (46) and through
hammers (47).
4. Install O-ring (62) over threads on hammer case
cap (55).
5. Slide hammer case cap assembly (55 and 56) over
anvil (49) and using flats on cap (55) screw into
handle (1), tighten securely.
Note: Apply lubrication to threads.
Greenlee / A Textron Company
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Spool shown in Closed-Center Position
Models 48330/48329
(effective through serial number 299)
H8508 Hydraulic Impact Wrench
Quick-Change Chuck
1. Slide thrust ring lock (51) over anvil (49) to groove
closest to hammer case cap (55).
2. Insert two balls (54) into holes in anvil (49). Slide
retaining sleeve (50) onto anvil (49) "Open" side up.
Insert spring (53) and thrust ring (52) into retaining
sleeve (50). Depress thrust ring (52) and install
thrust ring lock (51) on anvil (49). This will secure
retaining sleeve (50) to anvil (49). Insert drive shank
(61) into chuck.
Note: If either thrust ring (51) becomes sprung or
out-of-round during disassembly, discard and
replace with a new ring.
Figure 4
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4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
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