Rolair MK103 Owner's Manual

TORQUE CHART
PUMP NUMBER MK103
PART NUMBER 8390874
HEAD BOLTS 26 NM (19
ft/lb)
CYLINDER BOLTS 24 NM (18
ft/lb)
BEARING CARRIER 8 NM (6
BOLTS ft/lb)
CONNECTING ROD N/A
BOLTS
FLYWHEEL BOLT 28 NM (21
ft/lb)
TROUBLESHOOTING & SOLUTIONS
Problem Possible cause
1. Lack of oil in crankcase
2. Worn piston pin
3. Worn main bearings
4. Worn connecting rod
Knocking
5. Excessive crankshaft end play
Piston hitting head due to
6. foreign matter/carbon
deposits.
1. Air leaks
Low
2. Broken or dirty valves
Discharge
Pressure/ 3. Restricted air intake
Pumps 4. Blown gaskets
Slowly 5. Defective gauges
6. Pump too small for application
1. Restricted or dirty air filter
Excessive Oil Crankcase is over-filled with
2.
Consumption oil
3. Worn piston rings
1. Poor ventilation
Overheating 2. Dirty cooling surface
Pump 3. Restricted air intake
4. Low oil lever
5. Dirty or defective reed valve
1. Worn piston rings
2. Pump air intake restricted
Oil in the 3. Restricted crankcase breather
Discharge
4. Excessive oil in pump
Air
5. Wrong oil viscosity
Water in 1. Pump does not run long
Crankcase 2. Pump too large for application
MK113 BK119 PV02A
837426 8390890 8489817
27 NM (20 45 NM (33 23 NM (17
ft/lb) ft/lb) ft/lb)
24 NM (18 24 NM (18 15 NM (11
ft/lb) ft/lb) ft/lb)
8 NM (6 25 NM (19 15 NM (11
ft/lb) ft/lb) ft/lb)
N/A N/A 23 NM (17
ft/lb)
28 NM (21 28 NM (21 23 NM (17
ft/lb) ft/lb) ft/lb)
Corrective Action
1. Add oil
2. Replace pin
3. Replace bearings
4. Replace inserts or rod assembly
5. Consult dealer
Inspect, repair or replace valves &
6.
pistons
1. Check system for air leaks
Replace or clean valves and valve
2.
plates
3. Replace filter element
4. Replace gaskets
5. Replace gauges
6. Consult dealer
1. Clean or replace air filter
2. Drain oil and refill to proper lever
3. Consult dealer
Move pump to allow for better
1.
ventilation
2. Clean pump
3. Replace filter
4. Add non-detergent, single viscosity oil
5. Clean valve plate and replace valves
1. Replace piston rings
2. Replace filter
3. Clean crankcase breather
Check gauge and adjust to proper oil
4.
level
Drain and replace with non-detergent,
5.
single viscosity oil
1. Consult dealer
2. Consult dealer
PT03A
Pump Owner's Manual
8390908
23 NM (17
ft/lb)
15 NM (11
PLEASE! Read All Instructions Carefully
ft/lb)
15 NM (11
ft/lb)
23 NM (17
ft/lb)
23 NM (17
ft/lb)
Before Installing Pump