Product Manual

ASSEMBLY / OPERATING INSTRUCTIONS
GENERAL PUMP • 1174 Northland Drive • Mendota Heights, MN 55120
Phone: [phone] • Fax: [phone] • email: [e-mail] • www.generalpump.com
Ref 310156 Rev C
03-20
GENERAL PUMP A member of the Interpump Group
DCFSCP20/GZ
Flat Surface Cleaner
REPAIR KITS
NO. PART NO. DESCRIPTION QTY.
1
2500010 HOUSING (DCFSCP20GZ)
1
2500011 HOUSING (DCFSCP20)
2 2520030 RETAINER, BEARING 1
3 2520028 RETAINER, BEARING 1
4 2520027 SPACER, BEARING 2
5
2640004 BEARING (DCFSCP20GZ)
2
2640015 BEARING (DCFSCP20)
6 2701012 O-RING 1
7 2701011 O-RING 1
8 2701010 O-RING 1
9 2720007 SPRING 1
10 2530008 PIN 2
11 2530007 STEM, SMALL 1
12 2520029 SNAP RING 3
13 2710000 BACK UP RING 1
14 2520113 STEM 1
15 2200092 SCREW, M5 X 16 3
16 2200050 WASHER 3
17 2500012 RETAINER, BEARING 1
18 2640012 ZERK, GREASE 1
Photo of Rotary Head - Major
as assembled.
1. Bolt the two halves of the handle together with the two M6 x 60mm long bolts, nylok nuts and
four washers.
2. Connect the handle to the brackets on the deck with the two 55mm long pins and rings.
3. Using thread sealant on hose’s male threads, connect the hose to the swivel on the deck.
4. Again, using thread sealant, attach the in-line filter to the inlet of the gun.
5. Connect to Pressure Washer.
6. Turn water on and open valve. Open trigger gun for flow of water through nozzles. Nozzles
must have flowing spray. If not, remove tips and clean; reassemble, making sure that groove
of nozzle is parallel to spray bar. Use thread sealant when installing nozzles.
7. Start Pressure Washer. The Hammerhead is ready for operation.
8. Walk slowly behind the Hammerhead cleaning as you go. If striping occurs, slow down your
pace.
9. Periodically check weep hole on bottom of swivel. Water will seep slowly; if water shoots out,
stop and replace seals. Swivel assembly can be rebuilt.
10. For maximum effectiveness keep spray tips clean. If the machine vibrates, stop and clean
spray tips.
11. For the DCFSCP20GZ only: Grease the swivel with one or two grease gun pumps every 200
hours (or once about every 30 days of use). Use No. 2 general purpose waterproof lithium
grease. For hot water applications, use a high quality high temperature grease.
NOTE: after 50 hours of use, remove the in-line filter, take apart and clean filter screen.
DO NOT ALLOW MACHINE TO REMAIN STATIONARY
ON SOFT SURFACES SUCH AS WOOD.
STORAGE NOTE
When storing the FSC for a few weeks or
months, it is best to drain as much water as
possible. Disconnect the FSC from the pump
and stand the handle up. Clamp the gun trigger
open and let the water run out. Shop air can also
be used at the gun inlet to force out the water.
Caution: Striking any raised obstacle during
operation will damage machine. If contact does
occur and results in vibration when operat-
ing machine, STOP and replace spray bar.
Continued operation could result in serious injury
or damage to machine.
Rotary Head Kit - Major:
P/N 2100372
Includes items 2, 3, 4, 5, 6, 7, 8,
9, 10, 11, 12, 13, 14, 15 and 17
Rotary Head Kit - Minor:
P/N 2100203
Includes items 8, 9, 11, and 13
Complete Rotary Head Kit:
P/N 2103220
Includes all items
Replacement Nozzles:
For Arm 2103288
P/N 925020M (3 required)
IMPORTANT: TROUBLESHOOTING
If the flat surface cleaner rotating arm is not spin-
ning, tilt the flat surface cleaner up so you can
see the underside of the deck. If a nozzle is not
spraying it is plugged and needs to be cleaned.
The best way is to do this is to remove the nozzle
(9/16” wrench) and tap it on a hard surface (be
careful not to damage the threads). Sometimes
it’s necessary to unplug the nozzle by running a
thin wire through the tip.
Seal the threads before replacing the nozzle.
Teflon tape can often plug a nozzle so be sure
tape does not get into the nozzle flow path. A
light duty liquid or paste thread sealant is the
best way to seal the threads.