Titan PGD2000 Operator's Manual page 14

Top Driver Body
•
Wear eye protection.
•
To remove the hammer, gently tap the main cast housing vertically down on a soft bench top,
and it should slide out of the barrel. Locate the Viton O-ring and replace it at this time. The
hammer is made of high-quality, hardened-tool steel and should not show any signs of wear.
Thoroughly clean the hammer.
•
To remove the piston and connecting rod, you will need to remove the LEFT-HAND THREAD
crank pin from the crank, and gently push the piston through the bottom of the housing. To
access the crank pin, remove the crank housing cover. Use caution when handling the
connecting rod and crankshaft as to not damage these components.
•
Clean and inspect the piston and connecting rod. Insert the crank pin into the bearing on the
connecting rod to check for fit. If there is excessive play or side-to-side movement, you may
need to replace the crank pin. Check the movement in the bearing on the piston side. If there is
excessive play, the connecting rod should be replaced. Locate the Viton O-ring on the piston
and replace it at this time. See Figures 7 and 8.
Figure 7: Location of left-hand thread crank pin
Figure 8: Piston with connecting rod in place
•
Clean and inspect the cylinder and crank case for any damage or excessive wear. Replace any
damaged parts you may identify.
•
Remove the inner springs of the handle to clean and lubricate each one. Check all handle cups
for any excessive wear. Clean and lubricate the upper and lower cups.
14