Humboldt H-2987 Concrete Rebound Hammer - Manual (Page 7)

worn and ineffective after more than 8,000 tests. Therefore, if you have an
older Rebound Hammer that is no longer providing accurate measurements,
and you tried to recalibrate it but it still doesn’t work properly, send it back to
Humboldt for an evaluation and/or repair.:
Safety:
• When using this device wear safety glasses
• Do not fire the Rebound Hammer against any body part
Specifications:
Humboldt Concrete Rebound Hammer: H-2987
Weight: 2lbs (0.9kilograms)
Size: 10.5" (267mm) with plunger retracted
Shipping weight: Six pounds (2.7 kilograms)
Carrying case: 15½ inches x 11½ inches x 2½ inches
Humboldt provides Repair and
calibration services for concrete
rebound hammers, Call: 1.800.544.7220
H-2987 Replacement Parts
Key Description Part#
1 Impact Plunger H-2975.1
3 Housing, complete H-2975.3
4 Rider with Guide Rod H-2975.4
6 Push-button, complete H-2975.6
7 Hammer Guide Bar H-2975.7
8 Guide Disk H-2975.8
9 Cap H-2975.9
10 Two-part Ring H-2975.10
11 Rear Cover H-2975.11
12 Compression Spring H-2975.12
13 Pawl H-2975.13
14 Hammer Mass H-2975.14
15 Retaining Spring H-2975.15
16 Impact Spring H-2975.16
17 Guide Sleeve H-2975.17
18 Felt Washer H-2975.18
19 Plexiglass Window H-2975.19
20 Trip Screw H-2975.20
21 Lock Nut H-2975.21
22 Pin H-2975.22
23 Pawl Spring H-2975.23
11
21
20
13
22
6
7
3
14.1
14.2
16
10
18
1
9
17
15
4
19
8
23
12