Grundoram Manual (PDF 1.7MB) - TT Technologies Inc.

Troubleshooting Guide10.Observation Reason Solution1. The GRUNDORAM is lackingpower. Usually the problem isthat the lubricator and moisturefrom the air compressor gum upthe inside of the barrel and theseals. Remove whip hose andpour in diesel fuel, reattach hoseand run tool. It is good practiceto clean the tool this way duringheavy use or when storing thetool during down time. Dieselfuel cuts through the moistureand helps prevent the pitting thatcan occur when water sits insidethe tool.a) The compressor is notdeveloping its rated psi.b) Internal piston resistance due todirt or sludge buildup.c) Air requirements of rammer toohigh due to worn or missingseals.d) Insufficient or incorrect type ofair tool oil.e) Compressor dischargetemperature too high.a) Check air pressure at thecompressor gauge(95 to 105 psi).b) Flush rammer with diesel fuel orcleaning solvent.c) Disassemble rammer andinspect or replace seals.d) Check function/setting oflubricator. Use GRUNDO-OILor approved alternative.e) Check seals. High temps causeseals to wear faster.2. GRUNDORAM is difficult to start,after starting runs at about 50%and the air is exhausting throughthe back in an excessiveamount. Check air dischargefrom compressor, also check airdischarge temp. This will tell youhow hot the tool was running.a) OSHA safety valve oncompressor not allowing surgeof air to start tool.b) Seals on control stud and pistonare worn or missing, due to highair temp or lack of lubricant.High discharge pressure cancause the seals to fail also.a) Contact compressor servicetech for adjustment.b) Replace worn or missing seals.Check function/setting oflubricator. Use GRUNDO-OILor approved alternative.3. GRUNDORAM is filled withwater and silt. Do I need to takeit apart to clean it?a) Pit was flooded before the toolwas removed.a) Tool normally can be cleanedwithout disassembly. Powerwash inside of tool throughcontrol stud opening or throughthe holes in the exhaust block.Lift the tool and tilt to wash anddrain. Then flush with dieselfuel or cleaning solvent.4. Straight Barrel Reversible ToolsOnly—Reversing GRUNDORAM,if the tool is dirty or gummed upinside it can cause the tool to runin reverse or neutral.a) Internal piston resistance due todirt or sludge buildup.b) Reversing air line plugged or notinstalled.a) Flush rammer with diesel fuel orcleaning solvent.b) Make sure reversing air line isinstalled and open duringforward operation.50 TT TECHNOLOGIES, INC.