Operating instructions
14  DR
® 
RAPIDFIRE™ LOG SPLITTER 
3.  Grease the Rack Teeth with All Purpose Grease (Figure 20). 
4.  Push the Carriage assembly back into starting position, reconnect both 
Return Springs and cut the strings off. 
Changing Engine Oil 
One of the easiest methods to remove oil from this Engine is to use a siphon 
style Oil Extractor. If you do not have one you can purchase it from us at 
www.DRpower.com. 
Tools and Supplies needed: 
  Oil Extractor 
  Clean Container for used Oil 
1.  Remove the Oil Fill/Dipstick (Figure 21). 
2.  Siphon the Oil as described in the Oil Extractor instructions. 
3.  Add oil as described in “Adding Oil and Gasoline” in Chapter 2. 
Rail Maintenance 
Between each use of the LOG SPLITTER, we recommend applying a rust 
preventative (Fluid Film or equivalent) to any bare metal areas on the top of the 
rail (Figure 20). This will assure the longest possible service life of the Wear 
Plate. 
Carriage Adjustment 
If there is too much free-play between the Carriage hold downs and the Frame, it 
creates additional stress to the Carriage assembly and an adjustment is 
necessary. To check this, manually pull the Ram out all the way towards the 
Wedge. If the Tail of the Ram has more than 1/2" side-to-side play, perform the 
following procedure: 
Tools and Supplies needed: 
  9/16" Socket with Ratchet 
  Torque Wrench 
1.  Remove the Return Springs as described in step 1 of “Greasing The Rack 
and Pinion” on page 13 (Figure 19). 
2.  Pull the Carriage assembly out about half way to the Wedge. 
3.  Loosen the three side Bolts on each side of Carriage assembly (Figure 22). 
4.  Insert a single thickness of writing paper 3/8" wide by 6" long between the Hold Down and edge of Frame on one side only. 
5.  Manually squeeze both Hold Downs towards each other against the paper and retighten Bolts to 55 foot pounds with a Torque 
Wrench. The high torque on these Bolts is important. 
6.  Make sure that the Carriage assembly moves freely on the Rail. If it doesn’t move freely, try the above adjustment using 
something thicker such as Cereal Box Cardboard (but no thicker than this). Remove the paper/cardboard when finished. 
7.  Push the Carriage assembly back, reconnect the Return Springs and cut the strings. 
Carriage Wear Plate Replacement (Change Wear Plate when thickness is more than half way worn through) 
Tools and Supplies needed: 
  9/16" Socket with Ratchet 
  Torque Wrench 
  String 
Carriage 
Hold Downs 
Figure 22 
Bolts and 
Locknuts 
Gaps Between 
Frame and 
Hold Downs 
Grease 
on Teeth 
Figure 20 
Rai
l
Oil 
Check/Fill 
Figure 21 










